Messages in this thread | | | From | Ping-Ke Shih <> | Subject | RE: [PATCH] rtw88: check the return value of alloc_workqueue() | Date | Tue, 26 Jul 2022 02:38:06 +0000 |
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> -----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
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