From 11a1e0ed7908f04c896e69d0eb65e478c12f8519 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 7 Oct 2016 11:41:13 -0300 Subject: [PATCH] [media] dvb-usb: warn if return value for USB read/write routines is not checked the return values for dvb_usb_generic_rw() and dvb_usb_generic_write() should be checked, as otherwise the drivers won't be doing the right thing in the case of errors. So, add __must_check to both declarations. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/dvb-usb/dvb-usb.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/dvb-usb/dvb-usb.h b/drivers/media/usb/dvb-usb/dvb-usb.h index 639c4678c65b..1448c3d27ea2 100644 --- a/drivers/media/usb/dvb-usb/dvb-usb.h +++ b/drivers/media/usb/dvb-usb/dvb-usb.h @@ -462,8 +462,10 @@ extern int dvb_usb_device_init(struct usb_interface *, extern void dvb_usb_device_exit(struct usb_interface *); /* the generic read/write method for device control */ -extern int dvb_usb_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16,int); -extern int dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16); +extern int __must_check +dvb_usb_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16, int); +extern int __must_check +dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16); /* commonly used remote control parsing */ extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *); -- 2.20.1