V4L/DVB (4474): On some cases, depth were not returned.

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

diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 20dff7c..3d7b97c 100644 (file)
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -2431,6 +2431,14 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
                fbuf->bytesperline  = btv->fbuf.fmt.bytesperline;
                if (fh->ovfmt)
                        fbuf->depth = fh->ovfmt->depth;
+               else {
+                       if (fbuf->width)
+                               fbuf->depth   = ((fbuf->bytesperline<<3)
+                                                  + (fbuf->width-1) )
+                                                  /fbuf->width;
+                       else
+                               fbuf->depth = 0;
+               }
                return 0;
        }
        case VIDIOCSFBUF:

diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c
index d7c3fcb..1d899e2 100644 (file)
--- 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;