From: Mauro Carvalho Chehab <mchehab@infradead.org>
Date: Mon, 20 Nov 2006 15:06:54 +0000 (-0300)
Subject: V4L/DVB (4857): Cleans some ioctl structs before calling V4L2 counterpart
X-Git-Tag: v4.13~40948^2~18^2~74
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c6aeb11127a8a4266d613563f737a1d60cfae628;p=mirror_ubuntu-bionic-kernel.git

V4L/DVB (4857): Cleans some ioctl structs before calling V4L2 counterpart

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c
index 1d899e2db394..06221a0c38aa 100644
--- a/drivers/media/video/v4l1-compat.c
+++ b/drivers/media/video/v4l1-compat.c
@@ -714,6 +714,7 @@ v4l_compat_translate_ioctl(struct inode         *inode,
 	case VIDIOCGFREQ: /*  get frequency  */
 	{
 		unsigned long *freq = arg;
+		memset(&freq2,0,sizeof(freq2));
 
 		freq2.tuner = 0;
 		err = drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
@@ -726,8 +727,8 @@ v4l_compat_translate_ioctl(struct inode         *inode,
 	case VIDIOCSFREQ: /*  set frequency  */
 	{
 		unsigned long *freq = arg;
+		memset(&freq2,0,sizeof(freq2));
 
-		freq2.tuner = 0;
 		drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
 		freq2.frequency = *freq;
 		err = drv(inode, file, VIDIOC_S_FREQUENCY, &freq2);
@@ -738,6 +739,7 @@ v4l_compat_translate_ioctl(struct inode         *inode,
 	case VIDIOCGAUDIO: /*  get audio properties/controls  */
 	{
 		struct video_audio	*aud = arg;
+		memset(&aud2,0,sizeof(aud2));
 
 		err = drv(inode, file, VIDIOC_G_AUDIO, &aud2);
 		if (err < 0) {
@@ -898,6 +900,7 @@ v4l_compat_translate_ioctl(struct inode         *inode,
 	{
 		int			*i = arg;
 
+		memset(&buf2,0,sizeof(buf2));
 		buf2.index = *i;
 		buf2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 		err = drv(inode, file, VIDIOC_QUERYBUF, &buf2);