+++ /dev/null
---- linux-stage.orig/fs/ext4/mmp.c 2015-11-01 15:42:38.069175571 +0530
-+++ linux-stage/fs/ext4/mmp.c 2015-11-01 15:46:53.840174791 +0530
-@@ -59,8 +59,11 @@
- }
-
- mmp = (struct mmp_struct *)((*bh)->b_data);
-- if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC)
-+ if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC) {
-+ brelse(*bh);
-+ *bh = NULL;
- return -EINVAL;
-+ }
-
- return 0;
- }
-@@ -178,6 +180,7 @@
- "The filesystem seems to have been"
- " multiply mounted.");
- ext4_error(sb, "abort");
-+ put_bh(bh_check);
- goto failed;
- }
- put_bh(bh_check);