Re: [PATCH] staging: comedi: dt2811: fix integer overflow in multiply

2019-02-03 Thread Dan Carpenter
On Sun, Feb 03, 2019 at 02:29:04PM +0300, Dan Carpenter wrote: > > diff --git a/drivers/staging/comedi/drivers/dt2811.c > > b/drivers/staging/comedi/drivers/dt2811.c > > index 05207a519755..820e75f850ff 100644 > > --- a/drivers/staging/comedi/drivers/dt2811.c > > +++ b/drivers/staging/comedi/drive

Re: [PATCH] staging: comedi: dt2811: fix integer overflow in multiply

2019-02-03 Thread Dan Carpenter
On Sat, Feb 02, 2019 at 09:59:16PM +, Colin King wrote: > From: Colin Ian King > > Multiplying two unsigned ints leads to an unsigned int result. The > intention is that the result is a unsigned long long, so to fix the > overflow cast the div to an unsigned long long to ensure that the > mul