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fat: ix mount option parsing

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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>
This commit is contained in:
Jan Kara 2012-12-17 16:02:59 -08:00 committed by Linus Torvalds
parent 58156c8fbf
commit 5b3d5aeaa3
1 changed files with 11 additions and 11 deletions
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22
fs/fat/inode.c
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@ -972,41 +972,41 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat,
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 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat,
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;