From: Dan Carpenter <error27@gmail.com>
Date: Thu, 12 Aug 2010 07:47:07 +0000 (-0300)
Subject: V4L/DVB: IR: ir-raw-event: null pointer dereference
X-Git-Tag: v2.6.36-rc8~32^2~33
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=028816bc85db5ac6a562c2aff2113c7480d67919;p=profile%2Fivi%2Fkernel-x86-ivi.git

V4L/DVB: IR: ir-raw-event: null pointer dereference

The original code dereferenced ir->raw after freeing it and setting it
to NULL.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/IR/ir-raw-event.c b/drivers/media/IR/ir-raw-event.c
index 43094e7..8e0e1b1 100644
--- a/drivers/media/IR/ir-raw-event.c
+++ b/drivers/media/IR/ir-raw-event.c
@@ -279,9 +279,11 @@ int ir_raw_event_register(struct input_dev *input_dev)
 			"rc%u",  (unsigned int)ir->devno);
 
 	if (IS_ERR(ir->raw->thread)) {
+		int ret = PTR_ERR(ir->raw->thread);
+
 		kfree(ir->raw);
 		ir->raw = NULL;
-		return PTR_ERR(ir->raw->thread);
+		return ret;
 	}
 
 	mutex_lock(&ir_raw_handler_lock);