Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / btrfs / file-item.c

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 127555b..196b089 100644 (file)
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -423,7 +423,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
        ret = 0;
 fail:
        while (ret < 0 && !list_empty(&tmplist)) {
-               sums = list_entry(&tmplist, struct btrfs_ordered_sum, list);
+               sums = list_entry(tmplist.next, struct btrfs_ordered_sum, list);
                list_del(&sums->list);
                kfree(sums);
        }
@@ -756,7 +756,7 @@ again:
                                found_next = 1;
                        if (ret != 0)
                                goto insert;
-                       slot = 0;
+                       slot = path->slots[0];
                }
                btrfs_item_key_to_cpu(path->nodes[0], &found_key, slot);
                if (found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||