diff options
Diffstat (limited to 'drivers/media/pci/ivtv/ivtvfb.c')
| -rw-r--r-- | drivers/media/pci/ivtv/ivtvfb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/pci/ivtv/ivtvfb.c b/drivers/media/pci/ivtv/ivtvfb.c index 22123a25daea..0aeb9daaee4c 100644 --- a/drivers/media/pci/ivtv/ivtvfb.c +++ b/drivers/media/pci/ivtv/ivtvfb.c @@ -378,6 +378,9 @@ static ssize_t ivtvfb_write(struct fb_info *info, const char __user *buf, unsigned long dma_size; u16 lead = 0, tail = 0; + if (!info->screen_base) + return -ENODEV; + total_size = info->screen_size; if (total_size == 0) |