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[SCSI] target: iblock/pscsi claim checking for NULL instead of IS_ERR 

blkdev_get_by_path() returns an ERR_PTR() or error and it doesn't return
a NULL.  It looks like this bug would be easy to trigger by mistake.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Dan Carpenter 2011-02-09 15:34:36 -08:00 committed by James Bottomley
parent a361cc0025
commit 3ae279d259
2 changed files with 3 additions and 3 deletions
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2
drivers/target/target_core_iblock.c
View File

@ -154,7 +154,7 @@ static struct se_device *iblock_create_virtdevice(
bd = blkdev_get_by_path(ib_dev->ibd_udev_path,
FMODE_WRITE|FMODE_READ|FMODE_EXCL, ib_dev);
if (!(bd))
if (IS_ERR(bd))
goto failed;
/*
* Setup the local scope queue_limits from struct request_queue->limits

4
drivers/target/target_core_pscsi.c
View File

@ -462,8 +462,8 @@ static struct se_device *pscsi_create_type_disk(
*/
bd = blkdev_get_by_path(se_dev->se_dev_udev_path,
FMODE_WRITE|FMODE_READ|FMODE_EXCL, pdv);
if (!(bd)) {
printk("pSCSI: blkdev_get_by_path() failed\n");
if (IS_ERR(bd)) {
printk(KERN_ERR "pSCSI: blkdev_get_by_path() failed\n");
scsi_device_put(sd);
return NULL;
}