Ben Hutchings wrote:
> This returns without unlocking dev->lock, which isn't much of an
> improvement. Please get that fixed in mainline, and then I can apply
> both of the changes to 3.2.y at once.
Oh dear. Quite right. Sorry. Thanks.
Douglas
>From c1d4df58efb2d13551586d177bcbb4e9af588618 Mon Sep 17 00:00:00 2001
From: Douglas Bagnall <douglas@xxxxxxxxxxxxxxx>
Date: Tue, 7 Aug 2012 19:30:36 +1200
Subject: [PATCH] Unlock the rc_dev lock when the raw device is missing
As pointed out by Ben Hutchings, after commit 720bb6436, the lock was
being taken and not released when an rc_dev has a NULL raw device.
Signed-off-by: Douglas Bagnall <douglas@xxxxxxxxxxxxxxx>
---
drivers/media/rc/rc-main.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index cabc19c..dcd45d0 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -778,9 +778,10 @@ static ssize_t show_protocols(struct device *device,
} else if (dev->raw) {
enabled = dev->raw->enabled_protocols;
allowed = ir_raw_get_allowed_protocols();
- } else
+ } else {
+ mutex_unlock(&dev->lock);
return -ENODEV;
-
+ }
IR_dprintk(1, "allowed - 0x%llx, enabled - 0x%llx\n",
(long long)allowed,
(long long)enabled);
--
1.7.9.5
