fix affs parse_options()

Error handling in that sucker got broken back in 2003.  If function
returns 0 on failure, it's not nice to add return -EINVAL into it.
Adding return 1 on other failure exits is also not a good thing (and
yes, original success exits with 1 and some of failure exits with 0
are still there; so's the original logics in callers).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/affs/super.c b/fs/affs/super.c
index be6a6e8..d41e967 100644 (file)
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -203,7 +203,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
                switch (token) {
                case Opt_bs:
                        if (match_int(&args[0], &n))
-                               return -EINVAL;
+                               return 0;
                        if (n != 512 && n != 1024 && n != 2048
                            && n != 4096) {
                                printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n");
@@ -213,7 +213,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
                        break;
                case Opt_mode:
                        if (match_octal(&args[0], &option))
-                               return 1;
+                               return 0;
                        *mode = option & 0777;
                        *mount_opts |= SF_SETMODE;
                        break;
@@ -231,21 +231,21 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
                        break;
                case Opt_reserved:
                        if (match_int(&args[0], reserved))
-                               return 1;
+                               return 0;
                        break;
                case Opt_root:
                        if (match_int(&args[0], root))
-                               return 1;
+                               return 0;
                        break;
                case Opt_setgid:
                        if (match_int(&args[0], &option))
-                               return 1;
+                               return 0;
                        *gid = option;
                        *mount_opts |= SF_SETGID;
                        break;
                case Opt_setuid:
                        if (match_int(&args[0], &option))
-                               return -EINVAL;
+                               return 0;
                        *uid = option;
                        *mount_opts |= SF_SETUID;
                        break;