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rtlwifi: fix uninitialized rtlhal->last_suspend_sec time

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commit 3f2a162fab upstream.

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.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann
2017-11-06 14:55:35 +01:00
committed by Greg Kroah-Hartman
parent 9f724960c5
commit 404dcc55b0
1 changed files with 1 additions and 0 deletions
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drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
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@@ -1372,6 +1372,7 @@ static void _rtl8821ae_get_wakeup_reason(struct ieee80211_hw *hw)
ppsc->wakeup_reason = 0;
do_gettimeofday(&ts);
rtlhal->last_suspend_sec = ts.tv_sec;
switch (fw_reason) {