1 files changed, 13 insertions, 2 deletions

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 8f9abedae2c3..badc6f141b6f 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1585,6 +1585,18 @@ static int btrfsic_map_block(struct btrfsic_state *state, u64 bytenr, u32 len,
         ret = btrfs_map_block(state->root->fs_info, READ,
                               bytenr, &length, &multi, mirror_num);
 
+        if (ret) {
+                block_ctx_out->start = 0;
+                block_ctx_out->dev_bytenr = 0;
+                block_ctx_out->len = 0;
+                block_ctx_out->dev = NULL;
+                block_ctx_out->datav = NULL;
+                block_ctx_out->pagev = NULL;
+                block_ctx_out->mem_to_free = NULL;
+
+                return ret;
+        }
+
         device = multi->stripes[0].dev;
         block_ctx_out->dev = btrfsic_dev_state_lookup(device->bdev);
         block_ctx_out->dev_bytenr = multi->stripes[0].physical;
@@ -1594,8 +1606,7 @@ static int btrfsic_map_block(struct btrfsic_state *state, u64 bytenr, u32 len,
         block_ctx_out->pagev = NULL;
         block_ctx_out->mem_to_free = NULL;
 
-        if (0 == ret)
-                kfree(multi);
+        kfree(multi);
         if (NULL == block_ctx_out->dev) {
                 ret = -ENXIO;
                 printk(KERN_INFO "btrfsic: error, cannot lookup dev (#1)!\n");