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-rw-r--r--fs/ocfs2/refcounttree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 6a42c04ac0ab..46bbd315c39f 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -4852,7 +4852,7 @@ int ocfs2_reflink_remap_range(struct file *file_in,
ret = generic_remap_file_range_prep(file_in, pos_in, file_out, pos_out,
&len, remap_flags);
- if (ret <= 0)
+ if (ret < 0 || len == 0)
goto out_unlock;
/* Lock out changes to the allocation maps and remap. */