From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 8 Aug 2014 10:27:20 +0000 (-0300)
Subject: [media] au0828: avoid race conditions at RC stop
X-Git-Tag: submit/tizen/20141121.110247~376
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=205d630813571919f77e8eff7c3905eda26213ce;p=platform%2Fkernel%2Flinux-3.10.git

[media] au0828: avoid race conditions at RC stop

As the RC kthread can re-enable IR int, we should first
cancel the kthread and then disable IR int.

While here, remove a temporary debug printk.

Change-Id: I36ab0a218c0f88c39b023e7bd0eed7b7bdbc2d0c
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

diff --git a/drivers/media/usb/au0828/au0828-input.c b/drivers/media/usb/au0828/au0828-input.c
index fcb9065..7e6f4ab 100644
--- a/drivers/media/usb/au0828/au0828-input.c
+++ b/drivers/media/usb/au0828/au0828-input.c
@@ -253,10 +253,10 @@ static void au0828_rc_stop(struct rc_dev *rc)
 {
 	struct au0828_rc *ir = rc->priv;
 
+	cancel_delayed_work_sync(&ir->work);
+
 	/* Disable IR */
 	au8522_rc_clear(ir, 0xe0, 1 << 4);
-
-	cancel_delayed_work_sync(&ir->work);
 }
 
 static int au0828_probe_i2c_ir(struct au0828_dev *dev)