| From | Mauro Carvalho Chehab <> | Subject | [PATCH 23/26] dvb-usb: warn if return value for USB read/write routines is not checked | Date | Fri, 7 Oct 2016 14:24:33 -0300 |
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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 <mchehab@s-opensource.com> --- 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 *); -- 2.7.4
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