The parameter 'res' is defined as unsigned type, so the following if statement is invalid, we can modify the type of res to long. if (res < 0) res = io->bytes_done; else res += io->bytes_done; io_uring/rw.c:265 io_fixup_rw_res() warn: unsigned 'res' is never less than zero. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2184 Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx> --- io_uring/rw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/rw.c b/io_uring/rw.c index b777c35378b9..08d88481153c 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -256,7 +256,7 @@ static bool __io_complete_rw_common(struct io_kiocb *req, long res) return false; } -static inline unsigned io_fixup_rw_res(struct io_kiocb *req, unsigned res) +static inline unsigned io_fixup_rw_res(struct io_kiocb *req, long res) { struct io_async_rw *io = req->async_data; -- 2.20.1.7.g153144c
