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iio: buffer: fix coding style warnings
Just cosmetics. No functional change intended... Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20230216101452.591805-4-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá
Jonathan Cameron
parent
9a96084182
commit
26e46ef775
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@ -194,7 +194,7 @@ static ssize_t iio_buffer_write(struct file *filp, const char __user *buf,
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written = 0;
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add_wait_queue(&rb->pollq, &wait);
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do {
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if (indio_dev->info == NULL)
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if (!indio_dev->info)
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return -ENODEV;
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if (!iio_buffer_space_available(rb)) {
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@ -210,7 +210,7 @@ static ssize_t iio_buffer_write(struct file *filp, const char __user *buf,
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}
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wait_woken(&wait, TASK_INTERRUPTIBLE,
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MAX_SCHEDULE_TIMEOUT);
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MAX_SCHEDULE_TIMEOUT);
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continue;
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}
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@ -242,7 +242,7 @@ static __poll_t iio_buffer_poll(struct file *filp,
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struct iio_buffer *rb = ib->buffer;
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struct iio_dev *indio_dev = ib->indio_dev;
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if (!indio_dev->info || rb == NULL)
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if (!indio_dev->info || !rb)
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return 0;
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poll_wait(filp, &rb->pollq, wait);
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@ -407,9 +407,9 @@ static ssize_t iio_scan_el_show(struct device *dev,
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/* Note NULL used as error indicator as it doesn't make sense. */
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static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks,
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unsigned int masklength,
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const unsigned long *mask,
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bool strict)
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unsigned int masklength,
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const unsigned long *mask,
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bool strict)
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{
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if (bitmap_empty(mask, masklength))
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return NULL;
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@ -427,7 +427,7 @@ static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks,
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}
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static bool iio_validate_scan_mask(struct iio_dev *indio_dev,
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const unsigned long *mask)
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const unsigned long *mask)
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{
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if (!indio_dev->setup_ops->validate_scan_mask)
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return true;
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@ -446,7 +446,7 @@ static bool iio_validate_scan_mask(struct iio_dev *indio_dev,
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* individual buffers request is plausible.
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*/
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static int iio_scan_mask_set(struct iio_dev *indio_dev,
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struct iio_buffer *buffer, int bit)
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struct iio_buffer *buffer, int bit)
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{
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const unsigned long *mask;
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unsigned long *trialmask;
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@ -539,7 +539,6 @@ error_ret:
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mutex_unlock(&iio_dev_opaque->mlock);
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return ret < 0 ? ret : len;
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}
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static ssize_t iio_scan_el_ts_show(struct device *dev,
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@ -706,7 +705,7 @@ static unsigned int iio_storage_bytes_for_timestamp(struct iio_dev *indio_dev)
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}
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static int iio_compute_scan_bytes(struct iio_dev *indio_dev,
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const unsigned long *mask, bool timestamp)
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const unsigned long *mask, bool timestamp)
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{
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unsigned int bytes = 0;
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int length, i, largest = 0;
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@ -732,7 +731,7 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev,
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}
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static void iio_buffer_activate(struct iio_dev *indio_dev,
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struct iio_buffer *buffer)
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struct iio_buffer *buffer)
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{
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struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
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@ -753,12 +752,12 @@ static void iio_buffer_deactivate_all(struct iio_dev *indio_dev)
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struct iio_buffer *buffer, *_buffer;
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list_for_each_entry_safe(buffer, _buffer,
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&iio_dev_opaque->buffer_list, buffer_list)
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&iio_dev_opaque->buffer_list, buffer_list)
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iio_buffer_deactivate(buffer);
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}
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static int iio_buffer_enable(struct iio_buffer *buffer,
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struct iio_dev *indio_dev)
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struct iio_dev *indio_dev)
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{
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if (!buffer->access->enable)
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return 0;
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@ -766,7 +765,7 @@ static int iio_buffer_enable(struct iio_buffer *buffer,
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}
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static int iio_buffer_disable(struct iio_buffer *buffer,
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struct iio_dev *indio_dev)
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struct iio_dev *indio_dev)
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{
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if (!buffer->access->disable)
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return 0;
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@ -774,7 +773,7 @@ static int iio_buffer_disable(struct iio_buffer *buffer,
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}
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static void iio_buffer_update_bytes_per_datum(struct iio_dev *indio_dev,
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struct iio_buffer *buffer)
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struct iio_buffer *buffer)
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{
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unsigned int bytes;
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@ -782,13 +781,13 @@ static void iio_buffer_update_bytes_per_datum(struct iio_dev *indio_dev,
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return;
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bytes = iio_compute_scan_bytes(indio_dev, buffer->scan_mask,
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buffer->scan_timestamp);
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buffer->scan_timestamp);
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buffer->access->set_bytes_per_datum(buffer, bytes);
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}
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static int iio_buffer_request_update(struct iio_dev *indio_dev,
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struct iio_buffer *buffer)
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struct iio_buffer *buffer)
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{
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int ret;
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@ -797,7 +796,7 @@ static int iio_buffer_request_update(struct iio_dev *indio_dev,
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ret = buffer->access->request_update(buffer);
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if (ret) {
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dev_dbg(&indio_dev->dev,
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"Buffer not started: buffer parameter update failed (%d)\n",
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"Buffer not started: buffer parameter update failed (%d)\n",
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ret);
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return ret;
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}
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@ -807,7 +806,7 @@ static int iio_buffer_request_update(struct iio_dev *indio_dev,
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}
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static void iio_free_scan_mask(struct iio_dev *indio_dev,
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const unsigned long *mask)
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const unsigned long *mask)
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{
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/* If the mask is dynamically allocated free it, otherwise do nothing */
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if (!indio_dev->available_scan_masks)
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@ -823,8 +822,9 @@ struct iio_device_config {
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};
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static int iio_verify_update(struct iio_dev *indio_dev,
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struct iio_buffer *insert_buffer, struct iio_buffer *remove_buffer,
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struct iio_device_config *config)
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struct iio_buffer *insert_buffer,
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struct iio_buffer *remove_buffer,
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struct iio_device_config *config)
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{
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struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
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unsigned long *compound_mask;
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@ -864,7 +864,7 @@ static int iio_verify_update(struct iio_dev *indio_dev,
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if (insert_buffer) {
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modes &= insert_buffer->access->modes;
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config->watermark = min(config->watermark,
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insert_buffer->watermark);
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insert_buffer->watermark);
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}
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/* Definitely possible for devices to support both of these. */
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@ -890,7 +890,7 @@ static int iio_verify_update(struct iio_dev *indio_dev,
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/* What scan mask do we actually have? */
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compound_mask = bitmap_zalloc(indio_dev->masklength, GFP_KERNEL);
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if (compound_mask == NULL)
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if (!compound_mask)
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return -ENOMEM;
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scan_timestamp = false;
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@ -911,18 +911,18 @@ static int iio_verify_update(struct iio_dev *indio_dev,
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if (indio_dev->available_scan_masks) {
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scan_mask = iio_scan_mask_match(indio_dev->available_scan_masks,
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indio_dev->masklength,
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compound_mask,
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strict_scanmask);
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indio_dev->masklength,
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compound_mask,
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strict_scanmask);
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bitmap_free(compound_mask);
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if (scan_mask == NULL)
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if (!scan_mask)
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return -EINVAL;
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} else {
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scan_mask = compound_mask;
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}
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config->scan_bytes = iio_compute_scan_bytes(indio_dev,
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scan_mask, scan_timestamp);
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scan_mask, scan_timestamp);
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config->scan_mask = scan_mask;
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config->scan_timestamp = scan_timestamp;
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@ -954,16 +954,16 @@ static void iio_buffer_demux_free(struct iio_buffer *buffer)
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}
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static int iio_buffer_add_demux(struct iio_buffer *buffer,
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struct iio_demux_table **p, unsigned int in_loc, unsigned int out_loc,
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unsigned int length)
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struct iio_demux_table **p, unsigned int in_loc,
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unsigned int out_loc,
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unsigned int length)
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{
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if (*p && (*p)->from + (*p)->length == in_loc &&
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(*p)->to + (*p)->length == out_loc) {
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(*p)->to + (*p)->length == out_loc) {
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(*p)->length += length;
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} else {
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*p = kmalloc(sizeof(**p), GFP_KERNEL);
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if (*p == NULL)
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if (!(*p))
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return -ENOMEM;
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(*p)->from = in_loc;
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(*p)->to = out_loc;
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@ -1027,7 +1027,7 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev,
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out_loc += length;
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}
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buffer->demux_bounce = kzalloc(out_loc, GFP_KERNEL);
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if (buffer->demux_bounce == NULL) {
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if (!buffer->demux_bounce) {
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ret = -ENOMEM;
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goto error_clear_mux_table;
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}
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@ -1060,7 +1060,7 @@ error_clear_mux_table:
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}
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static int iio_enable_buffers(struct iio_dev *indio_dev,
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struct iio_device_config *config)
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struct iio_device_config *config)
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{
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struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
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struct iio_buffer *buffer, *tmp = NULL;
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@ -1078,7 +1078,7 @@ static int iio_enable_buffers(struct iio_dev *indio_dev,
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ret = indio_dev->setup_ops->preenable(indio_dev);
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if (ret) {
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dev_dbg(&indio_dev->dev,
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"Buffer not started: buffer preenable failed (%d)\n", ret);
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"Buffer not started: buffer preenable failed (%d)\n", ret);
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goto err_undo_config;
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}
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}
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@ -1118,7 +1118,7 @@ static int iio_enable_buffers(struct iio_dev *indio_dev,
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ret = indio_dev->setup_ops->postenable(indio_dev);
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if (ret) {
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dev_dbg(&indio_dev->dev,
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"Buffer not started: postenable failed (%d)\n", ret);
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"Buffer not started: postenable failed (%d)\n", ret);
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goto err_detach_pollfunc;
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}
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}
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@ -1194,15 +1194,15 @@ static int iio_disable_buffers(struct iio_dev *indio_dev)
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}
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static int __iio_update_buffers(struct iio_dev *indio_dev,
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struct iio_buffer *insert_buffer,
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struct iio_buffer *remove_buffer)
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struct iio_buffer *insert_buffer,
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struct iio_buffer *remove_buffer)
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{
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struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
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struct iio_device_config new_config;
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int ret;
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ret = iio_verify_update(indio_dev, insert_buffer, remove_buffer,
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&new_config);
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&new_config);
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if (ret)
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return ret;
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@ -1258,7 +1258,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
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return 0;
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if (insert_buffer &&
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(insert_buffer->direction == IIO_BUFFER_DIRECTION_OUT))
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insert_buffer->direction == IIO_BUFFER_DIRECTION_OUT)
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return -EINVAL;
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mutex_lock(&iio_dev_opaque->info_exist_lock);
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@ -1275,7 +1275,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
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goto out_unlock;
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}
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if (indio_dev->info == NULL) {
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if (!indio_dev->info) {
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ret = -ENODEV;
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goto out_unlock;
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}
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@ -1615,7 +1615,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
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buffer_attrcount = 0;
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if (buffer->attrs) {
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while (buffer->attrs[buffer_attrcount] != NULL)
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while (buffer->attrs[buffer_attrcount])
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buffer_attrcount++;
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}
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buffer_attrcount += ARRAY_SIZE(iio_buffer_attrs);
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@ -1643,7 +1643,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
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}
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ret = iio_buffer_add_channel_sysfs(indio_dev, buffer,
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&channels[i]);
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&channels[i]);
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if (ret < 0)
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goto error_cleanup_dynamic;
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scan_el_attrcount += ret;
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@ -1651,10 +1651,10 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
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iio_dev_opaque->scan_index_timestamp =
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channels[i].scan_index;
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}
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if (indio_dev->masklength && buffer->scan_mask == NULL) {
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if (indio_dev->masklength && !buffer->scan_mask) {
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buffer->scan_mask = bitmap_zalloc(indio_dev->masklength,
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GFP_KERNEL);
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if (buffer->scan_mask == NULL) {
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if (!buffer->scan_mask) {
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ret = -ENOMEM;
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goto error_cleanup_dynamic;
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}
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@ -1771,7 +1771,7 @@ int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
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goto error_unwind_sysfs_and_mask;
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}
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sz = sizeof(*(iio_dev_opaque->buffer_ioctl_handler));
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sz = sizeof(*iio_dev_opaque->buffer_ioctl_handler);
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iio_dev_opaque->buffer_ioctl_handler = kzalloc(sz, GFP_KERNEL);
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if (!iio_dev_opaque->buffer_ioctl_handler) {
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ret = -ENOMEM;
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@ -1820,14 +1820,14 @@ void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev)
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* a time.
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*/
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bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
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const unsigned long *mask)
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const unsigned long *mask)
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{
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return bitmap_weight(mask, indio_dev->masklength) == 1;
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}
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EXPORT_SYMBOL_GPL(iio_validate_scan_mask_onehot);
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static const void *iio_demux(struct iio_buffer *buffer,
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const void *datain)
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const void *datain)
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{
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struct iio_demux_table *t;
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