From: Krzysztof Kozlowski Date: Thu, 12 Mar 2015 07:44:12 +0000 (+0100) Subject: power_supply: Add power_supply_put for decrementing device reference counter X-Git-Tag: omap-for-v4.1/fixes-rc1~174^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a352462b5377ac68f5955d674b3460c7bac52a3;p=pandora-kernel.git power_supply: Add power_supply_put for decrementing device reference counter The power_supply_get_by_phandle() and power_supply_get_by_name() use function class_find_device() for obtaining the reference to power supply. Each use of class_find_device() increases the power supply's device reference counter. However the reference counter was not decreased by users of this API. Thus final device_unregister() call from power_supply_unregister() could not release the device and clean up its resources. This lead to memory leak if at least once power_supply_get_by_*() was called between registering and unregistering the power supply. Add and document new API power_supply_put() for decrementing the reference counter. Signed-off-by: Krzysztof Kozlowski Acked-by: Pavel Machek Reviewed-by: Bartlomiej Zolnierkiewicz Reviewed-by: Sebastian Reichel Signed-off-by: Sebastian Reichel --- Reading git-diff-tree failed