fat: ix mount option parsing
parse_options() is supposed to return value < 0 on error however we
returned 0 (success) in a lot of cases. This actually was not a problem
in practice because match_token() used by parse_options() is clever and
catches most of the problems for us.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 59ac83b..3b733a7 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -972,41 +972,41 @@
break;
case Opt_uid:
if (match_int(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->fs_uid = make_kuid(current_user_ns(), option);
if (!uid_valid(opts->fs_uid))
- return 0;
+ return -EINVAL;
break;
case Opt_gid:
if (match_int(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->fs_gid = make_kgid(current_user_ns(), option);
if (!gid_valid(opts->fs_gid))
- return 0;
+ return -EINVAL;
break;
case Opt_umask:
if (match_octal(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->fs_fmask = opts->fs_dmask = option;
break;
case Opt_dmask:
if (match_octal(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->fs_dmask = option;
break;
case Opt_fmask:
if (match_octal(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->fs_fmask = option;
break;
case Opt_allow_utime:
if (match_octal(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->allow_utime = option & (S_IWGRP | S_IWOTH);
break;
case Opt_codepage:
if (match_int(&args[0], &option))
- return 0;
+ return -EINVAL;
opts->codepage = option;
break;
case Opt_flush:
@@ -1014,9 +1014,9 @@
break;
case Opt_time_offset:
if (match_int(&args[0], &option))
- return 0;
+ return -EINVAL;
if (option < -12 * 60 || option > 12 * 60)
- return 0;
+ return -EINVAL;
opts->tz_set = 1;
opts->time_offset = option;
break;