Date: Thu, 29 Dec 2005 19:18:46 +0100 From: Florent Thoumie <flz@xbsd.org> To: cvs-src@freebsd.org Cc: src-committers@freebsd.org, Alexander Leidinger <netchild@freebsd.org>, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/usb ums.c Message-ID: <200512291918.52021.flz@xbsd.org> In-Reply-To: <200512291744.jBTHifRr067385@repoman.freebsd.org> References: <200512291744.jBTHifRr067385@repoman.freebsd.org>
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On Thursday 29 December 2005 18:44, Alexander Leidinger wrote:
> netchild 2005-12-29 17:44:40 UTC
>
> FreeBSD src repository
>
> Modified files:
> sys/dev/usb ums.c
> Log:
> Merge NetBSD rev. 1.61:
> - Support more than 7 buttons for USB mice. Patch from NetBSD
> kern/30248.
I was looking at this PR two or three days ago and I found this in ums.c=20
which made me think this simple patch could be harmful.
u_char buttons =3D 0;
int i;
[...]
#define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
[...]
for (i =3D 0; i < sc->nbuttons; i++)
if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
buttons |=3D (1 << UMS_BUT(i));
I think this won't fit in u_char, what about uint32_t ?
=2D-=20
=46lorent Thoumie
flz@FreeBSD.org
=46reeBSD Committer
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