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path: root/drivers/mtd/ubi/kapi.c
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Diffstat (limited to 'drivers/mtd/ubi/kapi.c')
-rw-r--r--drivers/mtd/ubi/kapi.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 277786e..1361574 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -291,8 +291,7 @@ 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;
- struct ubi_volume_desc *ret;
+ int error, ubi_num, vol_id, mod;
struct inode *inode;
struct path path;
@@ -306,16 +305,16 @@ struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode)
return ERR_PTR(error);
inode = path.dentry->d_inode;
+ mod = inode->i_mode;
ubi_num = ubi_major2num(imajor(inode));
vol_id = iminor(inode) - 1;
+ path_put(&path);
+ if (!S_ISCHR(mod))
+ return ERR_PTR(-EINVAL);
if (vol_id >= 0 && ubi_num >= 0)
- ret = ubi_open_volume(ubi_num, vol_id, mode);
- else
- ret = ERR_PTR(-ENODEV);
-
- path_put(&path);
- return ret;
+ return ubi_open_volume(ubi_num, vol_id, mode);
+ return ERR_PTR(-ENODEV);
}
EXPORT_SYMBOL_GPL(ubi_open_volume_path);
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