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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-03-24 14:43:24 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-03-27 23:49:12 -0400 |
| commit | 87f15d4add758fb7fc76655721af94be57a4c17d (patch) | |
| tree | a5e6d2048e83797da89ac23a22280bd2b37c05c9 /drivers/mtd/ubi/build.c | |
| parent | f55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff) | |
| download | op-kernel-dev-87f15d4add758fb7fc76655721af94be57a4c17d.zip op-kernel-dev-87f15d4add758fb7fc76655721af94be57a4c17d.tar.gz | |
mtd: switch open_mtd_by_chdev() to use of vfs_stat()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/mtd/ubi/build.c')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 22fd19c..a7d1feb 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -1142,22 +1142,19 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) */ static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev) { - int err, major, minor, mode; - struct path path; + struct kstat stat; + int err, minor; /* Probably this is an MTD character device node path */ - err = kern_path(mtd_dev, LOOKUP_FOLLOW, &path); + err = vfs_stat(mtd_dev, &stat); if (err) return ERR_PTR(err); /* MTD device number is defined by the major / minor numbers */ - major = imajor(d_backing_inode(path.dentry)); - minor = iminor(d_backing_inode(path.dentry)); - mode = d_backing_inode(path.dentry)->i_mode; - path_put(&path); - if (major != MTD_CHAR_MAJOR || !S_ISCHR(mode)) + if (MAJOR(stat.rdev) != MTD_CHAR_MAJOR || !S_ISCHR(stat.mode)) return ERR_PTR(-EINVAL); + minor = MINOR(stat.rdev); if (minor & 1) /* * Just do not think the "/dev/mtdrX" devices support is need, |
