devm: add helper devm_add_action_or_reset()

Add a helper function devm_add_action_or_reset() which will internally
call devm_add_action(). But if devm_add_action() fails then it will
execute the action mentioned and return the error code.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

include/linux/device.h

@@ -682,6 +682,18 @@ void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
 int devm_add_action(struct device *dev, void (*action)(void *), void *data);
 void devm_remove_action(struct device *dev, void (*action)(void *), void *data);
 
+static inline int devm_add_action_or_reset(struct device *dev,
+					   void (*action)(void *), void *data)
+{
+	int ret;
+
+	ret = devm_add_action(dev, action, data);
+	if (ret)
+		action(data);
+
+	return ret;
+}
+
 struct device_dma_parameters {
 	/*
 	 * a low level driver may set these to teach IOMMU code about