diff options
Diffstat (limited to 'drivers/media/video/v4l1-compat.c')
| -rw-r--r-- | drivers/media/video/v4l1-compat.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c index d7c3fcbc80f..1d899e2db39 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; |