diff --git a/fs/splice.c b/fs/splice.c
index 60aed8de21f8..4dd684184572 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -751,9 +751,9 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
 
 		/* dismiss the fully eaten buffers, adjust the partial one */
 		tail = pipe->tail;
-		while (ret) {
+		while (ret > 0) {
 			struct pipe_buffer *buf = &pipe->bufs[tail & mask];
-			if (ret >= buf->len) {
+			if (ret >= (ssize_t)buf->len) {
 				ret -= buf->len;
 				buf->len = 0;
 				pipe_buf_release(pipe, buf);