[ upstream commit 62bb0647b14646fa6c9aa25ecdf67ad18f13523c ]
Kernel test robot reports that we test negativity of an unsigned in
io_fixup_rw_res() after a recent change, which masks error codes and
messes up the return value in case I/O is re-retried and failed with
an error.
Fixes: 4d9cb92ca41dd ("io_uring/rw: fix short rw error handling")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
Link: https://lore.kernel.org/r/9754a0970af1861e7865f9014f735c70dc60bf79.1663071587.git.asml.silence@xxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index c0d1948fb5a6..f667197c8bb9 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2701,7 +2701,7 @@ 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 int io_fixup_rw_res(struct io_kiocb *req, unsigned res)
{
struct io_async_rw *io = req->async_data;
--
2.38.0
