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authorAl Viro <viro@zeniv.linux.org.uk>2016-03-24 14:47:18 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-03-27 23:49:17 -0400
commit322ea0bbf3003df17b6253f76e572c37d79a6810 (patch)
tree5082d09ad7531d5968ed4a4e5e5b01e6ec9df461 /drivers/mtd
parent87f15d4add758fb7fc76655721af94be57a4c17d (diff)
mtd: switch ubi_open_volume_path() to vfs_stat()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/ubi/kapi.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index e844887732fb..437757c89b9e 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -301,27 +301,24 @@ EXPORT_SYMBOL_GPL(ubi_open_volume_nm);
*/
struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode)
{
- int error, ubi_num, vol_id, mod;
- struct inode *inode;
- struct path path;
+ int error, ubi_num, vol_id;
+ struct kstat stat;
dbg_gen("open volume %s, mode %d", pathname, mode);
if (!pathname || !*pathname)
return ERR_PTR(-EINVAL);
- error = kern_path(pathname, LOOKUP_FOLLOW, &path);
+ error = vfs_stat(pathname, &stat);
if (error)
return ERR_PTR(error);
- inode = d_backing_inode(path.dentry);
- mod = inode->i_mode;
- ubi_num = ubi_major2num(imajor(inode));
- vol_id = iminor(inode) - 1;
- path_put(&path);
-
- if (!S_ISCHR(mod))
+ if (!S_ISCHR(stat.mode))
return ERR_PTR(-EINVAL);
+
+ ubi_num = ubi_major2num(MAJOR(stat.rdev));
+ vol_id = MINOR(stat.rdev) - 1;
+
if (vol_id >= 0 && ubi_num >= 0)
return ubi_open_volume(ubi_num, vol_id, mode);
return ERR_PTR(-ENODEV);