Btrfs: Take the csum mutex while reading checksums

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

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 830dbaea6853..b695f5b29c45 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -545,7 +545,7 @@ int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u32 *sum)
                 ordered_sum = list_entry(cur, struct btrfs_ordered_sum, list);
                 if (offset >= ordered_sum->file_offset) {
                         num_sectors = ordered_sum->len / sectorsize;
-                        sector_sums = &ordered_sum->sums;
+                        sector_sums = ordered_sum->sums;
                         for (i = 0; i < num_sectors; i++) {
                                 if (sector_sums[i].offset == offset) {
                                         *sum = sector_sums[i].sum;