USB HID: usb_buffer_free() cleanup

usb_buffer_free() now handles NULLs so remove unneeded checks
form callers.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/usbhid/hid-core.c

@@ -626,13 +626,9 @@ static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
 {
 	struct usbhid_device *usbhid = hid->driver_data;
 
-	if (usbhid->inbuf)
 	usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
-	if (usbhid->outbuf)
 	usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
-	if (usbhid->cr)
 	usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma);
-	if (usbhid->ctrlbuf)
 	usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
 }
 

drivers/hid/usbhid/usbkbd.c

@@ -211,11 +211,8 @@ static void usb_kbd_free_mem(struct usb_device *dev, struct usb_kbd *kbd)
 {
 	usb_free_urb(kbd->irq);
 	usb_free_urb(kbd->led);
-	if (kbd->new)
 	usb_buffer_free(dev, 8, kbd->new, kbd->new_dma);
-	if (kbd->cr)
 	usb_buffer_free(dev, sizeof(struct usb_ctrlrequest), kbd->cr, kbd->cr_dma);
-	if (kbd->leds)
 	usb_buffer_free(dev, 1, kbd->leds, kbd->leds_dma);
 }