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[PATCH] kfree cleanup: drivers/s390

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This is the drivers/s390/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/s390/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Cornelia Huck <cohuck@de.ibm.com>
Acked-by: Stefan Bader <Stefan.Bader@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jesper Juhl 2005-11-07 01:01:30 -08:00 committed by Linus Torvalds
parent 3c7208f253
commit 17fd682e54
16 changed files with 44 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/s390/block/dasd.c
View File

@ -115,8 +115,7 @@ dasd_alloc_device(void)
void
dasd_free_device(struct dasd_device *device)
{
if (device->private)
kfree(device->private);
kfree(device->private);
free_page((unsigned long) device->erp_mem);
free_pages((unsigned long) device->ccw_mem, 1);
kfree(device);
@ -539,8 +538,7 @@ dasd_kmalloc_request(char *magic, int cplength, int datasize,
if (datasize > 0) {
cqr->data = kmalloc(datasize, GFP_ATOMIC | GFP_DMA);
if (cqr->data == NULL) {
if (cqr->cpaddr != NULL)
kfree(cqr->cpaddr);
kfree(cqr->cpaddr);
kfree(cqr);
return ERR_PTR(-ENOMEM);
}
@ -615,10 +613,8 @@ dasd_kfree_request(struct dasd_ccw_req * cqr, struct dasd_device * device)
clear_normalized_cda(ccw);
} while (ccw++->flags & (CCW_FLAG_CC | CCW_FLAG_DC));
#endif
if (cqr->cpaddr != NULL)
kfree(cqr->cpaddr);
if (cqr->data != NULL)
kfree(cqr->data);
kfree(cqr->cpaddr);
kfree(cqr->data);
kfree(cqr);
dasd_put_device(device);
}

3
drivers/s390/block/dasd_devmap.c
View File

@ -387,8 +387,7 @@ dasd_add_busid(char *bus_id, int features)
new = 0;
}
spin_unlock(&dasd_devmap_lock);
if (new)
kfree(new);
kfree(new);
return devmap;
}

3
drivers/s390/char/con3215.c
View File

@ -727,8 +727,7 @@ raw3215_remove (struct ccw_device *cdev)
raw = cdev->dev.driver_data;
if (raw) {
cdev->dev.driver_data = NULL;
if (raw->buffer)
kfree(raw->buffer);
kfree(raw->buffer);
kfree(raw);
}
}

15
drivers/s390/char/keyboard.c
View File

@ -99,13 +99,11 @@ out_fn_handler:
kfree(kbd->fn_handler);
out_func:
for (i = 0; i < ARRAY_SIZE(func_table); i++)
if (kbd->func_table[i])
kfree(kbd->func_table[i]);
kfree(kbd->func_table[i]);
kfree(kbd->func_table);
out_maps:
for (i = 0; i < ARRAY_SIZE(key_maps); i++)
if (kbd->key_maps[i])
kfree(kbd->key_maps[i]);
kfree(kbd->key_maps[i]);
kfree(kbd->key_maps);
out_kbd:
kfree(kbd);
@ -121,12 +119,10 @@ kbd_free(struct kbd_data *kbd)
kfree(kbd->accent_table);
kfree(kbd->fn_handler);
for (i = 0; i < ARRAY_SIZE(func_table); i++)
if (kbd->func_table[i])
kfree(kbd->func_table[i]);
kfree(kbd->func_table[i]);
kfree(kbd->func_table);
for (i = 0; i < ARRAY_SIZE(key_maps); i++)
if (kbd->key_maps[i])
kfree(kbd->key_maps[i]);
kfree(kbd->key_maps[i]);
kfree(kbd->key_maps);
kfree(kbd);
}
@ -452,8 +448,7 @@ do_kdgkb_ioctl(struct kbd_data *kbd, struct kbsentry __user *u_kbs,
return -EFAULT;
}
p[len] = 0;
if (kbd->func_table[kb_func])
kfree(kbd->func_table[kb_func]);
kfree(kbd->func_table[kb_func]);
kbd->func_table[kb_func] = p;
break;
}

3
drivers/s390/char/raw3270.c
View File

@ -183,8 +183,7 @@ raw3270_request_alloc_bootmem(size_t size)
void
raw3270_request_free (struct raw3270_request *rq)
{
if (rq->buffer)
kfree(rq->buffer);
kfree(rq->buffer);
kfree(rq);
}

9
drivers/s390/char/tape_core.c
View File

@ -682,8 +682,7 @@ tape_alloc_request(int cplength, int datasize)
request->cpdata = kmalloc(datasize, GFP_KERNEL | GFP_DMA);
if (request->cpdata == NULL) {
DBF_EXCEPTION(1, "cqra nomem\n");
if (request->cpaddr != NULL)
kfree(request->cpaddr);
kfree(request->cpaddr);
kfree(request);
return ERR_PTR(-ENOMEM);
}
@ -706,10 +705,8 @@ tape_free_request (struct tape_request * request)
if (request->device != NULL) {
request->device = tape_put_device(request->device);
}
if (request->cpdata != NULL)
kfree(request->cpdata);
if (request->cpaddr != NULL)
kfree(request->cpaddr);
kfree(request->cpdata);
kfree(request->cpaddr);
kfree(request);
}

3
drivers/s390/cio/cmf.c
View File

@ -642,8 +642,7 @@ static void
free_cmbe (struct ccw_device *cdev)
{
spin_lock_irq(cdev->ccwlock);
if (cdev->private->cmb)
kfree(cdev->private->cmb);
kfree(cdev->private->cmb);
cdev->private->cmb = NULL;
spin_unlock_irq(cdev->ccwlock);

6
drivers/s390/cio/device_ops.c
View File

@ -550,10 +550,8 @@ ccw_device_stlck(struct ccw_device *cdev)
/* Clear irb. */
memset(&cdev->private->irb, 0, sizeof(struct irb));
out_unlock:
if (buf)
kfree(buf);
if (buf2)
kfree(buf2);
kfree(buf);
kfree(buf2);
spin_unlock_irqrestore(&sch->lock, flags);
return ret;
}

9
drivers/s390/cio/qdio.c
View File

@ -1338,16 +1338,14 @@ qdio_release_irq_memory(struct qdio_irq *irq_ptr)
if (!irq_ptr->input_qs[i])
goto next;
if (irq_ptr->input_qs[i]->slib)
kfree(irq_ptr->input_qs[i]->slib);
kfree(irq_ptr->input_qs[i]->slib);
kfree(irq_ptr->input_qs[i]);
next:
if (!irq_ptr->output_qs[i])
continue;
if (irq_ptr->output_qs[i]->slib)
kfree(irq_ptr->output_qs[i]->slib);
kfree(irq_ptr->output_qs[i]->slib);
kfree(irq_ptr->output_qs[i]);
}
@ -3315,8 +3313,7 @@ qdio_get_qdio_memory(void)
static void
qdio_release_qdio_memory(void)
{
if (indicators)
kfree(indicators);
kfree(indicators);
}
static void

7
drivers/s390/crypto/z90main.c
View File

@ -3051,8 +3051,7 @@ destroy_crypto_device(int index)
if (dev_ptr) {
disabledFlag = dev_ptr->disabled;
t = dev_ptr->dev_type;
if (dev_ptr->dev_resp_p)
kfree(dev_ptr->dev_resp_p);
kfree(dev_ptr->dev_resp_p);
kfree(dev_ptr);
} else {
disabledFlag = 0;
@ -3080,11 +3079,11 @@ static void
destroy_z90crypt(void)
{
int i;
for (i = 0; i < z90crypt.max_count; i++)
if (z90crypt.device_p[i])
destroy_crypto_device(i);
if (z90crypt.hdware_info)
kfree((void *)z90crypt.hdware_info);
kfree(z90crypt.hdware_info);
memset((void *)&z90crypt, 0, sizeof(z90crypt));
}

36
drivers/s390/net/claw.c
View File

@ -2743,14 +2743,10 @@ probe_error( struct ccwgroup_device *cgdev)
#endif
privptr=(struct claw_privbk *)cgdev->dev.driver_data;
if (privptr!=NULL) {
if (privptr->p_env != NULL) {
kfree(privptr->p_env);
privptr->p_env=NULL;
}
if (privptr->p_mtc_envelope!=NULL) {
kfree(privptr->p_mtc_envelope);
privptr->p_mtc_envelope=NULL;
}
kfree(privptr->p_env);
privptr->p_env=NULL;
kfree(privptr->p_mtc_envelope);
privptr->p_mtc_envelope=NULL;
kfree(privptr);
privptr=NULL;
}
@ -4121,22 +4117,14 @@ claw_remove_device(struct ccwgroup_device *cgdev)
if (cgdev->state == CCWGROUP_ONLINE)
claw_shutdown_device(cgdev);
claw_remove_files(&cgdev->dev);
if (priv->p_mtc_envelope!=NULL) {
kfree(priv->p_mtc_envelope);
priv->p_mtc_envelope=NULL;
}
if (priv->p_env != NULL) {
kfree(priv->p_env);
priv->p_env=NULL;
}
if (priv->channel[0].irb != NULL) {
kfree(priv->channel[0].irb);
priv->channel[0].irb=NULL;
}
if (priv->channel[1].irb != NULL) {
kfree(priv->channel[1].irb);
priv->channel[1].irb=NULL;
}
kfree(priv->p_mtc_envelope);
priv->p_mtc_envelope=NULL;
kfree(priv->p_env);
priv->p_env=NULL;
kfree(priv->channel[0].irb);
priv->channel[0].irb=NULL;
kfree(priv->channel[1].irb);
priv->channel[1].irb=NULL;
kfree(priv);
cgdev->dev.driver_data=NULL;
cgdev->cdev[READ]->dev.driver_data = NULL;

3
drivers/s390/net/fsm.c
View File

@ -78,8 +78,7 @@ kfree_fsm(fsm_instance *this)
{
if (this) {
if (this->f) {
if (this->f->jumpmatrix)
kfree(this->f->jumpmatrix);
kfree(this->f->jumpmatrix);
kfree(this->f);
}
kfree(this);

12
drivers/s390/net/iucv.c
View File

@ -447,14 +447,10 @@ static void
iucv_exit(void)
{
iucv_retrieve_buffer();
if (iucv_external_int_buffer) {
kfree(iucv_external_int_buffer);
iucv_external_int_buffer = NULL;
}
if (iucv_param_pool) {
kfree(iucv_param_pool);
iucv_param_pool = NULL;
}
kfree(iucv_external_int_buffer);
iucv_external_int_buffer = NULL;
kfree(iucv_param_pool);
iucv_param_pool = NULL;
s390_root_dev_unregister(iucv_root);
bus_unregister(&iucv_bus);
printk(KERN_INFO "IUCV lowlevel driver unloaded\n");

3
drivers/s390/net/lcs.c
View File

@ -145,8 +145,7 @@ lcs_free_channel(struct lcs_channel *channel)
LCS_DBF_TEXT(2, setup, "ichfree");
for (cnt = 0; cnt < LCS_NUM_BUFFS; cnt++) {
if (channel->iob[cnt].data != NULL)
kfree(channel->iob[cnt].data);
kfree(channel->iob[cnt].data);
channel->iob[cnt].data = NULL;
}
}

3
drivers/s390/net/qeth_eddp.c
View File

@ -62,8 +62,7 @@ qeth_eddp_free_context(struct qeth_eddp_context *ctx)
for (i = 0; i < ctx->num_pages; ++i)
free_page((unsigned long)ctx->pages[i]);
kfree(ctx->pages);
if (ctx->elements != NULL)
kfree(ctx->elements);
kfree(ctx->elements);
kfree(ctx);
}

3
drivers/s390/scsi/zfcp_aux.c
View File

@ -450,8 +450,7 @@ zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
kfree(sg_list);
}
if (sense_data != NULL)
kfree(sense_data);
kfree(sense_data);
return retval;
}