Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (180 commits)
  V4L/DVB (4641): Trivial: use lowercase letters in hex subsystem ids
  V4L/DVB (4639): Cx88: add autodetection for alternate revision of Leadtek PVR
  V4L/DVB (4638): Basic DVB-T and analog TV support for the HVR1300.
  V4L/DVB (4637): Add a default method for VIDIOC_G_PARM
  V4L/DVB (4635): Extend bttv and saa7134 to check for both AGP and PCI PCI failure case
  V4L/DVB (4634): Zr36120: implement pcipci checks
  V4L/DVB (4632): Zoran: Implement pcipci failure check
  V4L/DVB (4631): Av7110: remove V4L2_CAP_VBI_CAPTURE flag
  V4L/DVB (4630): Av7110: FW_LOADER depemdency fixed
  V4L/DVB (4629): Saa7134: add card support for Proteus Pro 2309
  V4L/DVB (4628): Fix VIDIOC_ENUMSTD ioctl in videodev.c
  V4L/DVB (4627): Vivi crashes with mplayer
  V4L/DVB (4626): On saa7111/7113, LUMA_CTRL need a different value
  V4L/DVB (4624): Tvaudio: Replaced kernel_thread() with kthread_run()
  V4L/DVB (4622): Copy-paste bug in videodev.c
  V4L/DVB (4620): Fix AGC configuration for MOD3000P-based boards
  V4L/DVB (4619): Fixes some I2C dependencies on V4L devices
  V4L/DVB (4617): Problem with dibusb-mb.c USB IDs
  V4L/DVB (4616): [PATCH] Nebula DigiTV USB RC support
  V4L/DVB (4614): Export symbol saa7134_tvaudio_setmute from saa7134 for saa7134-alsa
  ...

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c
index d7c3fcbc80f7..1d899e2db394 100644
--- a/drivers/media/video/v4l1-compat.c
+++ b/drivers/media/video/v4l1-compat.c
@@ -349,6 +349,8 @@ v4l_compat_translate_ioctl(struct inode         *inode,
         {
                 struct video_buffer     *buffer = arg;
 
+                memset(buffer, 0, sizeof(*buffer));
+
                 err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2);
                 if (err < 0) {
                         dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %d\n",err);
@@ -361,7 +363,7 @@ v4l_compat_translate_ioctl(struct inode         *inode,
                 switch (fbuf2.fmt.pixelformat) {
                 case V4L2_PIX_FMT_RGB332:
                         buffer->depth = 8;
-                                break;
+                        break;
                 case V4L2_PIX_FMT_RGB555:
                         buffer->depth = 15;
                         break;
@@ -377,9 +379,13 @@ v4l_compat_translate_ioctl(struct inode         *inode,
                 default:
                         buffer->depth = 0;
                 }
-                if (0 != fbuf2.fmt.bytesperline)
+                if (fbuf2.fmt.bytesperline) {
                         buffer->bytesperline = fbuf2.fmt.bytesperline;
-                else {
+                        if (!buffer->depth && buffer->width)
+                                buffer->depth   = ((fbuf2.fmt.bytesperline<<3)
+                                                  + (buffer->width-1) )
+                                                  /buffer->width;
+                } else {
                         buffer->bytesperline =
                                 (buffer->width * buffer->depth + 7) & 7;
                         buffer->bytesperline >>= 3;