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driver core fixes: device_create_file() retval check in dmapool.c

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Check for device_create_file() return value in dma_pool_create().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Cornelia Huck 2006-09-22 11:37:27 +02:00 committed by Greg Kroah-Hartman
parent a306eea409
commit 141ecc5320
1 changed files with 11 additions and 2 deletions
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13
drivers/base/dmapool.c
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@ -141,11 +141,20 @@ dma_pool_create (const char *name, struct device *dev,
init_waitqueue_head (&retval->waitq);
if (dev) {
int ret;
down (&pools_lock);
if (list_empty (&dev->dma_pools))
device_create_file (dev, &dev_attr_pools);
ret = device_create_file (dev, &dev_attr_pools);
else
ret = 0;
/* note: not currently insisting "name" be unique */
list_add (&retval->pools, &dev->dma_pools);
if (!ret)
list_add (&retval->pools, &dev->dma_pools);
else {
kfree(retval);
retval = NULL;
}
up (&pools_lock);
} else
INIT_LIST_HEAD (&retval->pools);