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[PATCH] switch mtd and dm-table to lookup_bdev()

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No need to open-code it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2008-08-01 05:00:11 -04:00
parent a95164d979
commit d5686b444f
3 changed files with 18 additions and 45 deletions
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29
drivers/md/dm-table.c
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@@ -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;
}
/*