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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2006-09-22 11:37:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-10-18 12:49:55 -0700 |
| commit | 141ecc5320147d363d060cfc8042d197a3cdd496 (patch) | |
| tree | cb1946b3bb46d075430ce10ddf518ee8ae91c772 /drivers | |
| parent | a306eea40952e6365301e8a2f7d5ffa9c6a1921b (diff) | |
| download | lwn-141ecc5320147d363d060cfc8042d197a3cdd496.tar.gz lwn-141ecc5320147d363d060cfc8042d197a3cdd496.zip | |
driver core fixes: device_create_file() retval check in dmapool.c
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/dmapool.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/base/dmapool.c b/drivers/base/dmapool.c index 33c5cce1560b..b2efbd4cf710 100644 --- a/drivers/base/dmapool.c +++ b/drivers/base/dmapool.c @@ -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); |