Btrfs: fix a potential btrfs_bio leak on scrub fixups

In case we were able to map less than we wanted (length < PAGE_SIZE clause is true) btrfs_bio is still allocated and we have to free it. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>

Btrfs: fix a potential btrfs_bio leak on scrub fixups
In case we were able to map less than we wanted (length < PAGE_SIZE clause is true) btrfs_bio is still allocated and we have to free it. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Ilya Dryomov · Chris Mason
1 parent 21ca543efc
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
fs/btrfs/scrub.c
@@ -655,6 +655,7 @@
 		       "scrub_fixup: btrfs_map_block failed us for %llu\n",
 		       (unsigned long long)logical);
 		WARN_ON(1);
+		kfree(bbio);
 		return;
 	}
...	...	@@ -655,6 +655,7 @@
655	655	"scrub_fixup: btrfs_map_block failed us for %llu\n",
656	656	(unsigned long long)logical);
657	657	WARN_ON(1);
	658	+ kfree(bbio);
658	659	return;
659	660	}
660	661