[JFFS2] Prevent return of initialised variable in jffs2_init_acl_post()

Spotted by the Coverity checker, and pointed out by Adrian Bunk.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 9728614..77fc583 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -372,7 +372,7 @@
 			return rc;
 	}
 
-	return rc;
+	return 0;
 }
 
 void jffs2_clear_acl(struct jffs2_inode_info *f)