The HS/VS interrupt handler needs to access the pipeline object. It
erronously tries to get it from the CCDC output video node, which isn't
necessarily included in the pipeline. This leads to a NULL pointer
dereference.
Fix the bug by getting the pipeline object from the CCDC subdev entity.
Reported-by: Gary Thomas <gary@xxxxxxxxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
CC: stable@xxxxxxxxxx
---
drivers/media/video/omap3isp/ispccdc.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
This patch fixes a crash in v3.2 and is included in v3.3-rc1. It isn't
applicable to previous kernel versions.
diff --git a/drivers/media/video/omap3isp/ispccdc.c b/drivers/media/video/omap3isp/ispccdc.c
index b0b0fa5..9012b57 100644
--- a/drivers/media/video/omap3isp/ispccdc.c
+++ b/drivers/media/video/omap3isp/ispccdc.c
@@ -1406,8 +1406,7 @@ static int __ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32 event)
static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc)
{
- struct isp_pipeline *pipe =
- to_isp_pipeline(&ccdc->video_out.video.entity);
+ struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
struct video_device *vdev = ccdc->subdev.devnode;
struct v4l2_event event;
--
Regards,
Laurent Pinchart
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