This is a note to let you know that I've just added the patch titled
rtw89: ser: leave lps with mutex
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtw89-ser-leave-lps-with-mutex.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fb97874fd0929937a4719f37eaa2c1f82c6fff16
Author: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx>
Date: Mon Jul 4 10:34:51 2022 +0800
rtw89: ser: leave lps with mutex
[ Upstream commit 8676031bae1c91037d06341214f4150b33707c68 ]
Calling rtw89_leave_lps() should hold rtwdev::mutex.
So, fix it.
Signed-off-by: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220704023453.19935-5-pkshih@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/realtek/rtw89/ser.c b/drivers/net/wireless/realtek/rtw89/ser.c
index 726223f25dc6..7240364e8f7d 100644
--- a/drivers/net/wireless/realtek/rtw89/ser.c
+++ b/drivers/net/wireless/realtek/rtw89/ser.c
@@ -152,7 +152,10 @@ static void ser_state_run(struct rtw89_ser *ser, u8 evt)
rtw89_debug(rtwdev, RTW89_DBG_SER, "ser: %s receive %s\n",
ser_st_name(ser), ser_ev_name(ser, evt));
+ mutex_lock(&rtwdev->mutex);
rtw89_leave_lps(rtwdev);
+ mutex_unlock(&rtwdev->mutex);
+
ser->st_tbl[ser->state].st_func(ser, evt);
}
