diff --git a/fs/read_write.c b/fs/read_write.c
index 4da3e553090b..676728310899 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1531,9 +1531,11 @@ static int generic_copy_file_checks(struct file *file_in, loff_t pos_in,
 	else
 		count = min(count, size_in - (uint64_t)pos_in);
 
-	ret = generic_write_check_limits(file_out, pos_out, &count);
-	if (ret)
-		return ret;
+	if (count) {
+		ret = generic_write_check_limits(file_out, pos_out, &count);
+		if (ret)
+			return ret;
+	}
 
 	/* Don't allow overlapped copying within the same file. */
 	if (inode_in == inode_out &&