Hi Sakari,
Thank you for the patch.
On Saturday 07 March 2015 23:41:02 Sakari Ailus wrote:
> Only check for call platform data callback functions if there's platform
> data. Also take care of a few other cases where the NULL pdata pointer could
> have been accessed, and remove the check for NULL dev->platform_data
> pointer.
>
> Removing the check for NULL dev->platform_data isn't strictly needed by the
> DT support but there's no harm from that either: the device now can be used
> without sensors, for instance.
>
> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxx>
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/omap3isp/isp.c | 10 ++++------
> drivers/media/platform/omap3isp/ispvideo.c | 6 +++---
> 2 files changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/media/platform/omap3isp/isp.c
> b/drivers/media/platform/omap3isp/isp.c index 01356dd..b836bc8 100644
> --- a/drivers/media/platform/omap3isp/isp.c
> +++ b/drivers/media/platform/omap3isp/isp.c
> @@ -330,8 +330,8 @@ static int isp_xclk_init(struct isp_device *isp)
> if (np)
> continue;
>
> - if (pdata->xclks[i].con_id == NULL &&
> - pdata->xclks[i].dev_id == NULL)
> + if (!pdata || (pdata->xclks[i].con_id == NULL &&
> + pdata->xclks[i].dev_id == NULL))
> continue;
>
> xclk->lookup = kzalloc(sizeof(*xclk->lookup), GFP_KERNEL);
> @@ -1989,7 +1989,8 @@ static int isp_register_entities(struct isp_device
> *isp) goto done;
>
> /* Register external entities */
> - for (subdevs = pdata->subdevs; subdevs && subdevs->subdevs; ++subdevs) {
> + for (subdevs = pdata ? pdata->subdevs : NULL;
> + subdevs && subdevs->subdevs; ++subdevs) {
> struct v4l2_subdev *sensor =
> isp_register_subdev_group(isp, subdevs->subdevs);
>
> @@ -2271,9 +2272,6 @@ static int isp_probe(struct platform_device *pdev)
> int ret;
> int i, m;
>
> - if (pdata == NULL)
> - return -EINVAL;
> -
> isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
> if (!isp) {
> dev_err(&pdev->dev, "could not allocate memory\n");
> diff --git a/drivers/media/platform/omap3isp/ispvideo.c
> b/drivers/media/platform/omap3isp/ispvideo.c index 3fe9047..d644164 100644
> --- a/drivers/media/platform/omap3isp/ispvideo.c
> +++ b/drivers/media/platform/omap3isp/ispvideo.c
> @@ -1022,7 +1022,7 @@ isp_video_streamon(struct file *file, void *fh, enum
> v4l2_buf_type type)
>
> pipe->entities = 0;
>
> - if (video->isp->pdata->set_constraints)
> + if (video->isp->pdata && video->isp->pdata->set_constraints)
> video->isp->pdata->set_constraints(video->isp, true);
> pipe->l3_ick = clk_get_rate(video->isp->clock[ISP_CLK_L3_ICK]);
> pipe->max_rate = pipe->l3_ick;
> @@ -1104,7 +1104,7 @@ err_set_stream:
> err_check_format:
> media_entity_pipeline_stop(&video->video.entity);
> err_pipeline_start:
> - if (video->isp->pdata->set_constraints)
> + if (video->isp->pdata && video->isp->pdata->set_constraints)
> video->isp->pdata->set_constraints(video->isp, false);
> /* The DMA queue must be emptied here, otherwise CCDC interrupts that
> * will get triggered the next time the CCDC is powered up will try to
> @@ -1165,7 +1165,7 @@ isp_video_streamoff(struct file *file, void *fh, enum
> v4l2_buf_type type) video->queue = NULL;
> video->error = false;
>
> - if (video->isp->pdata->set_constraints)
> + if (video->isp->pdata && video->isp->pdata->set_constraints)
> video->isp->pdata->set_constraints(video->isp, false);
> media_entity_pipeline_stop(&video->video.entity);
--
Regards,
Laurent Pinchart
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