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io_uring/rw: fix error'ed retry return values
author
Pavel Begunkov
<asml.silence@gmail.com>
Tue, 13 Sep 2022 12:21:23 +0000
(13:21 +0100)
committer
Jens Axboe
<axboe@kernel.dk>
Tue, 13 Sep 2022 13:47:11 +0000
(07:47 -0600)
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@intel.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link:
https://lore.kernel.org/r/9754a0970af1861e7865f9014f735c70dc60bf79.1663071587.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/rw.c
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diff --git
a/io_uring/rw.c
b/io_uring/rw.c
index
1e18a44
..
76ebcfe
100644
(file)
--- a/
io_uring/rw.c
+++ b/
io_uring/rw.c
@@
-206,7
+206,7
@@
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, long
res)
{
struct io_async_rw *io = req->async_data;