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>

diff --git a/fs/affs/super.c b/fs/affs/super.c
index d2dc047cb4796b4a879606e60349ec4eb55a79ae..01d25d532541bc3d698f5321923a87cf9900cfe4 100644 (file)
--- 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;