From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Wed, 30 Nov 2011 17:57:28 +0000 (-0300)
Subject: [media] tm6000: fix OOPS at tm6000_ir_int_stop() and tm6000_ir_int_start()
X-Git-Tag: v3.12-rc1~3230^2~567
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2a887d27708a4f9f3b5ad8258f9e19a150b58f03;p=kernel%2Fkernel-generic.git

[media] tm6000: fix OOPS at tm6000_ir_int_stop() and tm6000_ir_int_start()

[ 3755.608233] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 3755.616360] IP: [<ffffffffa03b80b7>] tm6000_ir_int_stop+0x10/0x1b [tm6000]

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/tm6000/tm6000-input.c b/drivers/media/video/tm6000/tm6000-input.c
index e3467d4..af4bcf5 100644
--- a/drivers/media/video/tm6000/tm6000-input.c
+++ b/drivers/media/video/tm6000/tm6000-input.c
@@ -377,6 +377,9 @@ int tm6000_ir_int_start(struct tm6000_core *dev)
 {
 	struct tm6000_IR *ir = dev->ir;
 
+	if (!ir)
+		return;
+
 	return __tm6000_ir_int_start(ir->rc);
 }
 
@@ -384,6 +387,9 @@ void tm6000_ir_int_stop(struct tm6000_core *dev)
 {
 	struct tm6000_IR *ir = dev->ir;
 
+	if (!ir || !ir->rc)
+		return;
+
 	__tm6000_ir_int_stop(ir->rc);
 }