diff options
| -rw-r--r-- | drivers/media/video/ivtv/ivtvfb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c index 2d5a97431c0..5dec2e4012b 100644 --- a/drivers/media/video/ivtv/ivtvfb.c +++ b/drivers/media/video/ivtv/ivtvfb.c @@ -836,6 +836,10 @@ static int ivtvfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *inf u32 osd_pan_index; struct ivtv *itv = (struct ivtv *) info->par; + if (var->yoffset + info->var.yres > info->var.yres_virtual || + var->xoffset + info->var.xres > info->var.xres_virtual) + return -EINVAL; + osd_pan_index = var->yoffset * info->fix.line_length + var->xoffset * info->var.bits_per_pixel / 8; write_reg(osd_pan_index, 0x02A0C); |