linux-kernel - [PATCH 099/102] thermal: return an error on failure to register thermal class

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Date:	Mon,  8 Apr 2013 10:50:54 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Richard Guy Briggs <rbriggs@...hat.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 099/102] thermal: return an error on failure to register thermal class

3.5.7.10 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Richard Guy Briggs <rbriggs@...hat.com>

commit da28d966f6aa942ae836d09729f76a1647932309 upstream.

The return code from the registration of the thermal class is used to
unallocate resources, but this failure isn't passed back to the caller of
thermal_init.  Return this failure back to the caller.

This bug was introduced in changeset 4cb18728 which overwrote the return code
when the variable was re-used to catch the return code of the registration of
the genetlink thermal socket family.

Signed-off-by: Richard Guy Briggs <rbriggs@...hat.com>
Signed-off-by: Zhang Rui <rui.zhang@...el.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/thermal/thermal_sys.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 022bacb..5c26dda 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -1383,6 +1383,7 @@ static int __init thermal_init(void)
 		idr_destroy(&thermal_cdev_idr);
 		mutex_destroy(&thermal_idr_lock);
 		mutex_destroy(&thermal_list_lock);
+		return result;
 	}
 	result = genetlink_init();
 	return result;
-- 
1.8.1.2

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