* [PATCH] mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush()
@ 2021-06-22 13:08 Dan Carpenter
2021-06-25 9:05 ` Chun-Kuang Hu
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2021-06-22 13:08 UTC (permalink / raw)
To: Jassi Brar
Cc: Matthias Brugger, Yongqiang Niu, Chun-Kuang Hu, linux-kernel,
linux-arm-kernel, linux-mediatek, kernel-janitors
The "cb" pointer needs to be initialized before can assign
"data.data = cb->data;".
Fixes: 4a3cb0303984 ("mailbox: mtk-cmdq: Use mailbox rx_callback")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/mailbox/mtk-cmdq-mailbox.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 301e65b9527a..67a42b514429 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -455,10 +455,10 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)
list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
list_entry) {
+ cb = &task->pkt->async_cb;
data.sta = -ECONNABORTED;
data.data = cb->data;
data.pkt = task->pkt;
- cb = &task->pkt->async_cb;
if (cb->cb)
cb->cb(data);
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush()
2021-06-22 13:08 [PATCH] mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush() Dan Carpenter
@ 2021-06-25 9:05 ` Chun-Kuang Hu
0 siblings, 0 replies; 2+ messages in thread
From: Chun-Kuang Hu @ 2021-06-25 9:05 UTC (permalink / raw)
To: Dan Carpenter
Cc: Jassi Brar, Matthias Brugger, Yongqiang Niu, Chun-Kuang Hu,
linux-kernel, Linux ARM, moderated list:ARM/Mediatek SoC support,
kernel-janitors
Hi, Dan:
Dan Carpenter <dan.carpenter@oracle.com> 於 2021年6月22日 週二 下午9:09寫道:
>
> The "cb" pointer needs to be initialized before can assign
> "data.data = cb->data;".
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
>
> Fixes: 4a3cb0303984 ("mailbox: mtk-cmdq: Use mailbox rx_callback")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> drivers/mailbox/mtk-cmdq-mailbox.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> index 301e65b9527a..67a42b514429 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -455,10 +455,10 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)
>
> list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
> list_entry) {
> + cb = &task->pkt->async_cb;
> data.sta = -ECONNABORTED;
> data.data = cb->data;
> data.pkt = task->pkt;
> - cb = &task->pkt->async_cb;
> if (cb->cb)
> cb->cb(data);
>
> --
> 2.30.2
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-06-22 13:08 [PATCH] mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush() Dan Carpenter
2021-06-25 9:05 ` Chun-Kuang Hu
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