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-rw-r--r--fs/btrfs/file-item.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index b7e529d2860f..c4628a201cb3 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -118,9 +118,11 @@ struct btrfs_csum_item *btrfs_lookup_csum(struct btrfs_trans_handle *trans,
csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]);
csums_in_item /= csum_size;
- if (csum_offset >= csums_in_item) {
+ if (csum_offset == csums_in_item) {
ret = -EFBIG;
goto fail;
+ } else if (csum_offset > csums_in_item) {
+ goto fail;
}
}
item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);