[PATCH 3.14 23/25] compal-laptop: Fix leaking hwmon device

From: Greg Kroah-Hartman
Date: Mon May 11 2015 - 14:03:15 EST

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


From: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>

commit ad774702f1705c04e5fa492b793d8d477a504fa6 upstream.

The commit c2be45f09bb0 ("compal-laptop: Use
devm_hwmon_device_register_with_groups") wanted to change the
registering of hwmon device to resource-managed version. It mostly did
it except the main thing - it forgot to use devm-like function so the
hwmon device leaked after device removal or probe failure.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Fixes: c2be45f09bb0 ("compal-laptop: Use devm_hwmon_device_register_with_groups")
Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Acked-by: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/platform/x86/compal-laptop.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -1027,9 +1027,9 @@ static int compal_probe(struct platform_
if (err)
return err;

- hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
- DRIVER_NAME, data,
- compal_hwmon_groups);
+ hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
+ DRIVER_NAME, data,
+ compal_hwmon_groups);
if (IS_ERR(hwmon_dev)) {
err = PTR_ERR(hwmon_dev);
goto remove;

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