Btrfs: check return value of btrfs_alloc_path()

[pandora-kernel.git] / fs / partitions / ldm.c

diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
index 789c625..b10e354 100644 (file)
--- a/fs/partitions/ldm.c
+++ b/fs/partitions/ldm.c
@@ -251,6 +251,11 @@ static bool ldm_parse_vmdb (const u8 *data, struct vmdb *vm)
        }
 
        vm->vblk_size     = get_unaligned_be32(data + 0x08);
+       if (vm->vblk_size == 0) {
+               ldm_error ("Illegal VBLK size");
+               return false;
+       }
+
        vm->vblk_offset   = get_unaligned_be32(data + 0x0C);
        vm->last_vblk_seq = get_unaligned_be32(data + 0x04);