From 3f2a162fab15aee243178b5308bb5d1206fc4043 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 6 Nov 2017 14:55:35 +0100
Subject: [PATCH] rtlwifi: fix uninitialized rtlhal->last_suspend_sec time
Git-commit: 3f2a162fab15aee243178b5308bb5d1206fc4043
Patch-mainline: v4.15-rc1
References: bsc#1051510

We set rtlhal->last_suspend_sec to an uninitialized stack variable,
but unfortunately gcc never warned about this, I only found it
while working on another patch. I opened a gcc bug for this.

Presumably the value of rtlhal->last_suspend_sec is not all that
important, but it does get used, so we probably want the
patch backported to stable kernels.

Cc: stable@vger.kernel.org
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82839
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
@@ -1373,6 +1373,7 @@ static void _rtl8821ae_get_wakeup_reason
 
 	ppsc->wakeup_reason = 0;
 
+	do_gettimeofday(&ts);
 	rtlhal->last_suspend_sec = ts.tv_sec;
 
 	switch (fw_reason) {