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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-01 05:00:11 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-08-01 11:25:31 -0400
commitd5686b444ff3f72808d2b3fbd58672a86cdf38e7 (patch)
treed3cdebc042269641f7134556e2f8d263d526581a /drivers/md
parenta95164d979c5ca061f15bcaadc829c146693d4d9 (diff)
downloadop-kernel-dev-d5686b444ff3f72808d2b3fbd58672a86cdf38e7.zip
op-kernel-dev-d5686b444ff3f72808d2b3fbd58672a86cdf38e7.tar.gz
[PATCH] switch mtd and dm-table to lookup_bdev()
No need to open-code it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-table.c29
1 files changed, 6 insertions, 23 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 798e468..61f4414 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -316,29 +316,12 @@ static inline int check_space(struct dm_table *t)
*/
static int lookup_device(const char *path, dev_t *dev)
{
- int r;
- struct nameidata nd;
- struct inode *inode;
-
- if ((r = path_lookup(path, LOOKUP_FOLLOW, &nd)))
- return r;
-
- inode = nd.path.dentry->d_inode;
- if (!inode) {
- r = -ENOENT;
- goto out;
- }
-
- if (!S_ISBLK(inode->i_mode)) {
- r = -ENOTBLK;
- goto out;
- }
-
- *dev = inode->i_rdev;
-
- out:
- path_put(&nd.path);
- return r;
+ struct block_device *bdev = lookup_bdev(path);
+ if (IS_ERR(bdev))
+ return PTR_ERR(bdev);
+ *dev = bdev->bd_dev;
+ bdput(bdev);
+ return 0;
}
/*
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