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

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

1 files changed, 4 insertions, 1 deletions

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);