Btrfs: Hold csum mutex while reading in sums during readpages

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index a5ff19b34b21..70af24aa582b 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -150,7 +150,6 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
         struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
 
         path = btrfs_alloc_path();
-        path->reada = 2;
 
         WARN_ON(bio->bi_vcnt <= 0);
 
@@ -177,6 +176,7 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
                                 printk("no csum found for inode %lu start "
                                        "%llu\n", inode->i_ino,
                                        (unsigned long long)offset);
+                                item = NULL;
                                 goto found;
                         }
                         btrfs_item_key_to_cpu(path->nodes[0], &found_key,