staging: vc04_services: bcm2835-camera: Simplify NULL comparisons
Remove instances of explicit NULL comparisons in bcm2835-camera driver for code compaction. Signed-off-by: Aishwarya Pant <aishpant@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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69385ad9ab
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4bc58d1675
drivers/staging/vc04_services/bcm2835-camera
@ -250,7 +250,7 @@ static int queue_setup(struct vb2_queue *vq,
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unsigned long size;
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/* refuse queue setup if port is not configured */
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if (dev->capture.port == NULL) {
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if (!dev->capture.port) {
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v4l2_err(&dev->v4l2_dev,
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"%s: capture port not configured\n", __func__);
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return -EINVAL;
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@ -289,8 +289,8 @@ static int buffer_prepare(struct vb2_buffer *vb)
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v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
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__func__, dev);
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BUG_ON(dev->capture.port == NULL);
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BUG_ON(dev->capture.fmt == NULL);
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BUG_ON(!dev->capture.port);
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BUG_ON(!dev->capture.fmt);
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size = dev->capture.stride * dev->capture.height;
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if (vb2_plane_size(vb, 0) < size) {
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@ -324,14 +324,14 @@ static void buffer_cb(struct vchiq_mmal_instance *instance,
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if (status != 0) {
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/* error in transfer */
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if (buf != NULL) {
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if (buf) {
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/* there was a buffer with the error so return it */
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
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}
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return;
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} else if (length == 0) {
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/* stream ended */
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if (buf != NULL) {
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if (buf) {
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/* this should only ever happen if the port is
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* disabled and there are buffers still queued
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*/
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@ -513,7 +513,7 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
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__func__, dev);
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/* ensure a format has actually been set */
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if (dev->capture.port == NULL)
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if (!dev->capture.port)
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return -EINVAL;
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if (enable_camera(dev) < 0) {
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@ -604,7 +604,7 @@ static void stop_streaming(struct vb2_queue *vq)
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dev->capture.frame_count = 0;
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/* ensure a format has actually been set */
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if (dev->capture.port == NULL) {
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if (!dev->capture.port) {
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v4l2_err(&dev->v4l2_dev,
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"no capture port - stream not started?\n");
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return;
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@ -125,7 +125,7 @@ int set_framerate_params(struct bm2835_mmal_dev *dev);
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{ \
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v4l2_dbg(level, debug, dev, \
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"%s: w %u h %u field %u pfmt 0x%x bpl %u sz_img %u colorspace 0x%x priv %u\n", \
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desc == NULL ? "" : desc, \
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!desc ? "" : desc, \
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(pix_fmt)->width, (pix_fmt)->height, (pix_fmt)->field, \
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(pix_fmt)->pixelformat, (pix_fmt)->bytesperline, \
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(pix_fmt)->sizeimage, (pix_fmt)->colorspace, (pix_fmt)->priv); \
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@ -135,7 +135,7 @@ int set_framerate_params(struct bm2835_mmal_dev *dev);
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v4l2_dbg(level, debug, dev, \
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"%s: w %u h %u l %u t %u field %u chromakey %06X clip %p " \
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"clipcount %u bitmap %p\n", \
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desc == NULL ? "" : desc, \
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!desc ? "" : desc, \
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(win_fmt)->w.width, (win_fmt)->w.height, \
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(win_fmt)->w.left, (win_fmt)->w.top, \
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(win_fmt)->field, \
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@ -909,9 +909,7 @@ static int bm2835_mmal_s_ctrl(struct v4l2_ctrl *ctrl)
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const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl = ctrl->priv;
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int ret;
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if ((mmal_ctrl == NULL) ||
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(mmal_ctrl->id != ctrl->id) ||
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(mmal_ctrl->setter == NULL)) {
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if (!mmal_ctrl || mmal_ctrl->id != ctrl->id || !mmal_ctrl->setter) {
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pr_warn("mmal_ctrl:%p ctrl id:%d\n", mmal_ctrl, ctrl->id);
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return -EINVAL;
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}
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@ -657,7 +657,7 @@ static void service_callback(void *param,
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* should be verified the address lies in the kernel
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* address space.
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*/
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if (msg->h.context == NULL) {
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if (!msg->h.context) {
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pr_err("received message context was null!\n");
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vchi_held_msg_release(&msg_handle);
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break;
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@ -1387,7 +1387,7 @@ static int port_enable(struct vchiq_mmal_instance *instance,
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return 0;
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/* ensure there are enough buffers queued to cover the buffer headers */
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if (port->buffer_cb != NULL) {
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if (port->buffer_cb) {
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hdr_count = 0;
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list_for_each(buf_head, &port->buffers) {
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hdr_count++;
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@ -1547,7 +1547,7 @@ int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance,
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return -EINTR;
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/* disconnect ports if connected */
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if (src->connected != NULL) {
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if (src->connected) {
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ret = port_disable(instance, src);
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if (ret) {
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pr_err("failed disabling src port(%d)\n", ret);
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@ -1570,7 +1570,7 @@ int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance,
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src->connected = NULL;
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}
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if (dst == NULL) {
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if (!dst) {
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/* do not make new connection */
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ret = 0;
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pr_debug("not making new connection\n");
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@ -1817,7 +1817,7 @@ int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance)
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{
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int status = 0;
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if (instance == NULL)
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if (!instance)
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return -EINVAL;
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if (mutex_lock_interruptible(&instance->vchiq_mutex))
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