diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-03-24 19:47:18 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-03-28 05:49:17 +0200 |
| commit | 322ea0bbf3003df17b6253f76e572c37d79a6810 (patch) | |
| tree | 5082d09ad7531d5968ed4a4e5e5b01e6ec9df461 /drivers/mtd/ubi | |
| parent | mtd: switch open_mtd_by_chdev() to use of vfs_stat() (diff) | |
| download | linux-322ea0bbf3003df17b6253f76e572c37d79a6810.tar.xz linux-322ea0bbf3003df17b6253f76e572c37d79a6810.zip | |
mtd: switch ubi_open_volume_path() to vfs_stat()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/mtd/ubi')
| -rw-r--r-- | drivers/mtd/ubi/kapi.c | 19 |
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); |