On 3/16/21 11:04 PM, Jiapeng Chong wrote: > Fix the following coccicheck warnings: > > ./drivers/xen/evtchn.c:412:2-5: WARNING: Use BUG_ON instead of if > condition followed by BUG. > > Reported-by: Abaci Robot <ab...@linux.alibaba.com> > Signed-off-by: Jiapeng Chong <jiapeng.ch...@linux.alibaba.com> > --- > drivers/xen/evtchn.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c > index c99415a..b1c59bc 100644 > --- a/drivers/xen/evtchn.c > +++ b/drivers/xen/evtchn.c > @@ -408,8 +408,7 @@ static int evtchn_bind_to_user(struct per_user_data *u, > evtchn_port_t port) > err: > /* bind failed, should close the port now */ > close.port = port; > - if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0) > - BUG(); > + BUG_ON(HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0);
Is it actually worth doing a BUG() here at all? Seems to me WARN_ON_ONCE() should be sufficient. -boris > del_evtchn(u, evtchn); > return rc; > }
