[ 3.5.y.z extended stable ] Patch "rc: unlock on error in show_protocols()" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Tue Feb 26 16:12:37 UTC 2013

This is a note to let you know that I have just added a patch titled

    rc: unlock on error in show_protocols()

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



>From c6d3a35a81bd8320fd91b55271d238543d4cd53f Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter at oracle.com>
Date: Tue, 27 Nov 2012 13:35:09 -0300
Subject: [PATCH] rc: unlock on error in show_protocols()

commit 30ebc5e44d057a1619ad63fe32c8c1670c37c4b8 upstream.

We recently introduced a new return -ENODEV in this function but we need
to unlock before returning.

[mchehab at redhat.com: found two patches with the same fix. Merged SOB's/acks into one patch]
Acked-by: Herton R. Krzesinski <herton.krzesinski at canonical.com>
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
Signed-off-by: Douglas Bagnall <douglas at paradise.net.nz>

Signed-off-by: Mauro Carvalho Chehab <mchehab at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
 drivers/media/rc/rc-main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index cabc19c..cec1f8c 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -778,8 +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,

More information about the kernel-team mailing list