[PATCH 3.16 015/305] [media] cx23885: uninitialized variable in cx23885_av_work_handler()

Ben Hutchings
2016-08-14T17:58:35Z

From: Dan Carpenter <dan.carpenter@oracle.com>

commit 60587bd0680507f48ae3a7360983228fd207de8a upstream.

The "handled" variable could be uninitialized if the
interrupt_service_routine() call back hasn't been implimented or if it
has been implemented but doesn't initialize "handled" to zero at the
start. For example, adv76xx_isr() only sets "handled" to true.

Fixes: 44b153ca639f ('[media] m5mols: Add ISO sensitivity controls')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/media/pci/cx23885/cx23885-av.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/pci/cx23885/cx23885-av.c
+++ b/drivers/media/pci/cx23885/cx23885-av.c
@@ -29,7 +29,7 @@ void cx23885_av_work_handler(struct work
{
struct cx23885_dev *dev =
container_of(work, struct cx23885_dev, cx25840_work);
- bool handled;
+ bool handled = false;

v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine,
PCI_MSK_AV_CORE, &handled);