* [PATCH] rnbd: fix uninitialized variable
@ 2020-08-24 19:43 Tong Zhang
2020-08-24 19:45 ` Jens Axboe
0 siblings, 1 reply; 3+ messages in thread
From: Tong Zhang @ 2020-08-24 19:43 UTC (permalink / raw)
To: danil.kipnis, jinpu.wang, axboe, linux-block, linux-kernel; +Cc: ztong0001
variable err is uninitialized when bio is an error code
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
---
drivers/block/rnbd/rnbd-srv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
index 0fb94843a495..818eff323825 100644
--- a/drivers/block/rnbd/rnbd-srv.c
+++ b/drivers/block/rnbd/rnbd-srv.c
@@ -149,6 +149,7 @@ static int process_rdma(struct rtrs_srv *sess,
bio = rnbd_bio_map_kern(data, sess_dev->rnbd_dev->ibd_bio_set, datalen, GFP_KERNEL);
if (IS_ERR(bio)) {
rnbd_srv_err(sess_dev, "Failed to generate bio, err: %ld\n", PTR_ERR(bio));
+ err = bio
goto sess_dev_put;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] rnbd: fix uninitialized variable
2020-08-24 19:43 [PATCH] rnbd: fix uninitialized variable Tong Zhang
@ 2020-08-24 19:45 ` Jens Axboe
2020-08-24 19:46 ` Tong Zhang
0 siblings, 1 reply; 3+ messages in thread
From: Jens Axboe @ 2020-08-24 19:45 UTC (permalink / raw)
To: Tong Zhang, danil.kipnis, jinpu.wang, linux-block, linux-kernel
On 8/24/20 1:43 PM, Tong Zhang wrote:
> variable err is uninitialized when bio is an error code
It's fixed in Linus's tree:
commit 17bc10300c69bd51b82983cdadafa0a7791f074e
Author: Nathan Chancellor <natechancellor@gmail.com>
Date: Mon Aug 17 23:49:25 2020 -0700
block/rnbd: Ensure err is always initialized in process_rdma
--
Jens Axboe
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] rnbd: fix uninitialized variable
2020-08-24 19:45 ` Jens Axboe
@ 2020-08-24 19:46 ` Tong Zhang
0 siblings, 0 replies; 3+ messages in thread
From: Tong Zhang @ 2020-08-24 19:46 UTC (permalink / raw)
To: Jens Axboe; +Cc: danil.kipnis, Jinpu Wang, linux-block, linux-kernel
Got it. Thanks Jens.
On Mon, Aug 24, 2020 at 3:45 PM Jens Axboe <axboe@kernel.dk> wrote:
>
> On 8/24/20 1:43 PM, Tong Zhang wrote:
> > variable err is uninitialized when bio is an error code
>
> It's fixed in Linus's tree:
>
> commit 17bc10300c69bd51b82983cdadafa0a7791f074e
> Author: Nathan Chancellor <natechancellor@gmail.com>
> Date: Mon Aug 17 23:49:25 2020 -0700
>
> block/rnbd: Ensure err is always initialized in process_rdma
>
> --
> Jens Axboe
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-08-24 19:43 [PATCH] rnbd: fix uninitialized variable Tong Zhang
2020-08-24 19:45 ` Jens Axboe
2020-08-24 19:46 ` Tong Zhang
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