On 07/04/2010 06:11 AM, Andy Walls wrote:
> You missed an identical instance of the useless test 10 lines prior in
> ivtvfb_callback_init(). :)
Ah, thank you for pointing out. Find my comment below.
> --- a/drivers/media/video/ivtv/ivtvfb.c
> +++ b/drivers/media/video/ivtv/ivtvfb.c
> @@ -1201,9 +1201,14 @@ static int ivtvfb_init_card(struct ivtv *itv)
> static int __init ivtvfb_callback_init(struct device *dev, void *p)
> {
> struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
> - struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev);
> + struct ivtv *itv;
>
> - if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
> + if (v4l2_dev == NULL)
> + return 0;
> +
> + itv = container_of(v4l2_dev, struct ivtv, v4l2_dev);
> +
> + if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
> if (ivtvfb_init_card(itv) == 0) {
> IVTVFB_INFO("Framebuffer registered on %s\n",
> itv->v4l2_dev.name);
> @@ -1216,10 +1221,16 @@ static int __init ivtvfb_callback_init(struct device *de
> static int ivtvfb_callback_cleanup(struct device *dev, void *p)
> {
> struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
> - struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev);
> - struct osd_info *oi = itv->osd_info;
> + struct ivtv *itv;
> + struct osd_info *oi;
> +
> + if (v4l2_dev == NULL)
> + return 0;
>From my POV I NACK this. Given that it never triggered and drvdata are
set in v4l2_device_register called from ivtv_probe I can't see how
v4l2_dev be NULL. Could you elaborate?
--
js
suse labs
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