diff options
| author | Linus Torvalds | 2016-06-15 16:23:38 -1000 |
|---|---|---|
| committer | Linus Torvalds | 2016-06-15 16:23:38 -1000 |
| commit | abd38301639f4fa2e63dae75346c1f0d847d0dfa (patch) | |
| tree | e410bb291ef27a98739dc1bb657e78226a9147b8 /drivers | |
| parent | f66c6e6a840f94ad175c76fd51dc1af2f2d63cf3 (diff) | |
| parent | 61edc3f3b51d2d3948029197cfff6fef7d94e939 (diff) | |
Merge tag 'upstream-4.7-rc4' of git://git.infradead.org/linux-ubifs
Pull UBI fixes from Richard Weinberger:
"This contains fixes for a regression introduced in rc1"
* tag 'upstream-4.7-rc4' of git://git.infradead.org/linux-ubifs:
ubi: Don't bypass ->getattr()
Revert "mtd: switch open_mtd_by_chdev() to use of vfs_stat()"
Revert "mtd: switch ubi_open_volume_path() to vfs_stat()"
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 11 | ||||
| -rw-r--r-- | drivers/mtd/ubi/kapi.c | 8 |
2 files changed, 16 insertions, 3 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 16baeb51b2bd..ef3618299494 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -1147,11 +1147,17 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) */ static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev) { - struct kstat stat; int err, minor; + struct path path; + struct kstat stat; /* Probably this is an MTD character device node path */ - err = vfs_stat(mtd_dev, &stat); + err = kern_path(mtd_dev, LOOKUP_FOLLOW, &path); + if (err) + return ERR_PTR(err); + + err = vfs_getattr(&path, &stat); + path_put(&path); if (err) return ERR_PTR(err); @@ -1160,6 +1166,7 @@ static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev) return ERR_PTR(-EINVAL); minor = MINOR(stat.rdev); + if (minor & 1) /* * Just do not think the "/dev/mtdrX" devices support is need, diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index 348dbbcbedc8..a9e2cef7c95c 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -302,6 +302,7 @@ 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 path path; struct kstat stat; dbg_gen("open volume %s, mode %d", pathname, mode); @@ -309,7 +310,12 @@ struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode) if (!pathname || !*pathname) return ERR_PTR(-EINVAL); - error = vfs_stat(pathname, &stat); + error = kern_path(pathname, LOOKUP_FOLLOW, &path); + if (error) + return ERR_PTR(error); + + error = vfs_getattr(&path, &stat); + path_put(&path); if (error) return ERR_PTR(error); |