affs: handle match_strdup failure

fs/affs/super.c (parse_options): Remove useless initialization.  Handle
match_strdup failure.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/affs/super.c b/fs/affs/super.c
index d2dc047cb479..01d25d532541 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -199,7 +199,6 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
                 case Opt_prefix:
                         /* Free any previous prefix */
                         kfree(*prefix);
-                        *prefix = NULL;
                         *prefix = match_strdup(&args[0]);
                         if (!*prefix)
                                 return 0;
@@ -233,6 +232,8 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
                         break;
                 case Opt_volume: {
                         char *vol = match_strdup(&args[0]);
+                        if (!vol)
+                                return 0;
                         strlcpy(volume, vol, 32);
                         kfree(vol);
                         break;