linux-kernel - [PATCH v3 1/6] ivtv: zero-initialize cx25840 platform data

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Message-ID: <04a6d93e-6e4c-2949-89ea-5a9d1228718a@maciej.szmigiero.name>
Date:   Sun, 17 Dec 2017 18:35:06 +0100
From:   "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
To:     Michael Krufky <mkrufky@...uxtv.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Andy Walls <awalls@...metrocast.net>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-media@...r.kernel.org, Hans Verkuil <hverkuil@...all.nl>
Subject: [PATCH v3 1/6] ivtv: zero-initialize cx25840 platform data

We need to zero-initialize cx25840 platform data structure to make sure
that its future members do not contain random stack garbage.

Signed-off-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>
---
 drivers/media/pci/ivtv/ivtv-i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/pci/ivtv/ivtv-i2c.c b/drivers/media/pci/ivtv/ivtv-i2c.c
index 66696e6ee587..b755337ec938 100644
--- a/drivers/media/pci/ivtv/ivtv-i2c.c
+++ b/drivers/media/pci/ivtv/ivtv-i2c.c
@@ -293,6 +293,7 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
 			.platform_data = &pdata,
 		};
 
+		memset(&pdata, 0, sizeof(pdata));
 		pdata.pvr150_workaround = itv->pvr150_workaround;
 		sd = v4l2_i2c_new_subdev_board(&itv->v4l2_dev, adap,
 				&cx25840_info, NULL);