* [PATCH] rtw88: check the return value of alloc_workqueue()
@ 2022-07-23 6:37 williamsukatube
2022-07-26 2:38 ` Ping-Ke Shih
2022-07-29 13:35 ` wifi: " Kalle Valo
0 siblings, 2 replies; 3+ messages in thread
From: williamsukatube @ 2022-07-23 6:37 UTC (permalink / raw)
To: tony0620emma, kvalo, davem, edumazet, kuba, pabeni,
linux-wireless, netdev, linux-kernel
Cc: William Dean, Hacash Robot
From: William Dean <williamsukatube@gmail.com>
The function alloc_workqueue() in rtw_core_init() can fail, but
there is no check of its return value. To fix this bug, its return value
should be checked with new error handling code.
Fixes: fe101716c7c9d ("rtw88: replace tx tasklet with work queue")
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
---
drivers/net/wireless/realtek/rtw88/main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index efabd5b1bf5b..645ef1d01895 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1984,6 +1984,10 @@ int rtw_core_init(struct rtw_dev *rtwdev)
timer_setup(&rtwdev->tx_report.purge_timer,
rtw_tx_report_purge_timer, 0);
rtwdev->tx_wq = alloc_workqueue("rtw_tx_wq", WQ_UNBOUND | WQ_HIGHPRI, 0);
+ if (!rtwdev->tx_wq) {
+ rtw_warn(rtwdev, "alloc_workqueue rtw_tx_wq failed\n");
+ return -ENOMEM;
+ }
INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work);
INIT_DELAYED_WORK(&coex->bt_relink_work, rtw_coex_bt_relink_work);
--
2.25.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* RE: [PATCH] rtw88: check the return value of alloc_workqueue()
2022-07-23 6:37 [PATCH] rtw88: check the return value of alloc_workqueue() williamsukatube
@ 2022-07-26 2:38 ` Ping-Ke Shih
2022-07-29 13:35 ` wifi: " Kalle Valo
1 sibling, 0 replies; 3+ messages in thread
From: Ping-Ke Shih @ 2022-07-26 2:38 UTC (permalink / raw)
To: williamsukatube, tony0620emma, kvalo, davem, edumazet, kuba,
pabeni, linux-wireless, netdev, linux-kernel
Cc: William Dean, Hacash Robot
> -----Original Message-----
> From: williamsukatube@163.com <williamsukatube@163.com>
> Sent: Saturday, July 23, 2022 2:38 PM
> To: tony0620emma@gmail.com; kvalo@kernel.org; davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> pabeni@redhat.com; linux-wireless@vger.kernel.org; netdev@vger.kernel.org; linux-kernel@vger.kernel.org
> Cc: William Dean <williamsukatube@gmail.com>; Hacash Robot <hacashRobot@santino.com>
> Subject: [PATCH] rtw88: check the return value of alloc_workqueue()
>
> From: William Dean <williamsukatube@gmail.com>
>
> The function alloc_workqueue() in rtw_core_init() can fail, but
> there is no check of its return value. To fix this bug, its return value
> should be checked with new error handling code.
>
> Fixes: fe101716c7c9d ("rtw88: replace tx tasklet with work queue")
> Reported-by: Hacash Robot <hacashRobot@santino.com>
> Signed-off-by: William Dean <williamsukatube@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Thank you
> ---
> drivers/net/wireless/realtek/rtw88/main.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
> index efabd5b1bf5b..645ef1d01895 100644
> --- a/drivers/net/wireless/realtek/rtw88/main.c
> +++ b/drivers/net/wireless/realtek/rtw88/main.c
> @@ -1984,6 +1984,10 @@ int rtw_core_init(struct rtw_dev *rtwdev)
> timer_setup(&rtwdev->tx_report.purge_timer,
> rtw_tx_report_purge_timer, 0);
> rtwdev->tx_wq = alloc_workqueue("rtw_tx_wq", WQ_UNBOUND | WQ_HIGHPRI, 0);
> + if (!rtwdev->tx_wq) {
> + rtw_warn(rtwdev, "alloc_workqueue rtw_tx_wq failed\n");
> + return -ENOMEM;
> + }
>
> INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work);
> INIT_DELAYED_WORK(&coex->bt_relink_work, rtw_coex_bt_relink_work);
> --
> 2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: wifi: rtw88: check the return value of alloc_workqueue()
2022-07-23 6:37 [PATCH] rtw88: check the return value of alloc_workqueue() williamsukatube
2022-07-26 2:38 ` Ping-Ke Shih
@ 2022-07-29 13:35 ` Kalle Valo
1 sibling, 0 replies; 3+ messages in thread
From: Kalle Valo @ 2022-07-29 13:35 UTC (permalink / raw)
To: williamsukatube
Cc: tony0620emma, davem, edumazet, kuba, pabeni, linux-wireless,
netdev, linux-kernel, William Dean, Hacash Robot
williamsukatube@163.com wrote:
> From: William Dean <williamsukatube@gmail.com>
>
> The function alloc_workqueue() in rtw_core_init() can fail, but
> there is no check of its return value. To fix this bug, its return value
> should be checked with new error handling code.
>
> Fixes: fe101716c7c9d ("rtw88: replace tx tasklet with work queue")
> Reported-by: Hacash Robot <hacashRobot@santino.com>
> Signed-off-by: William Dean <williamsukatube@gmail.com>
> Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Patch applied to wireless-next.git, thanks.
42bbf810e155 wifi: rtw88: check the return value of alloc_workqueue()
--
https://patchwork.kernel.org/project/linux-wireless/patch/20220723063756.2956189-1-williamsukatube@163.com/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-07-23 6:37 [PATCH] rtw88: check the return value of alloc_workqueue() williamsukatube
2022-07-26 2:38 ` Ping-Ke Shih
2022-07-29 13:35 ` wifi: " Kalle Valo
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