linux-kernel - [PATCH v2 08/20] mwifiex: ensure "disable auto DS" struct is initialized

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Message-Id: <20170725011336.99993-9-briannorris@chromium.org>
Date:   Mon, 24 Jul 2017 18:13:24 -0700
From:   Brian Norris <briannorris@...omium.org>
To:     Ganapathi Bhat <gbhat@...vell.com>,
        Nishant Sarmukadam <nishants@...vell.com>
Cc:     <linux-kernel@...r.kernel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Amitkumar Karwar <amitkarwar@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        linux-wireless@...r.kernel.org,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH v2 08/20] mwifiex: ensure "disable auto DS" struct is initialized

The .idle_time field *should* be unused, but technically, we're allowing
unitialized stack garbage to pass all the way through to the firmware
host command. Let's zero it out instead.

Signed-off-by: Brian Norris <briannorris@...omium.org>
---
v2: no change
---
 drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
index 42997e05d90f..43ecd621d1ef 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -654,9 +654,9 @@ int mwifiex_get_bss_info(struct mwifiex_private *priv,
  */
 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 {
-	struct mwifiex_ds_auto_ds auto_ds;
-
-	auto_ds.auto_ds = DEEP_SLEEP_OFF;
+	struct mwifiex_ds_auto_ds auto_ds = {
+		.auto_ds = DEEP_SLEEP_OFF,
+	};
 
 	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 				DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
-- 
2.14.0.rc0.284.gd933b75aa4-goog