On Friday, December 18, 2015 02:17:16 PM Marcelo Araujo wrote: > 2015-12-18 13:53 GMT+08:00 Garrett Cooper <yaneurab...@gmail.com>: > > > > > > On Dec 17, 2015, at 21:36, luke <luke...@gmail.com> wrote: > > > > > >> On Fri, Dec 18, 2015 at 4:42 AM, John Baldwin <j...@freebsd.org> wrote: > > >> Author: jhb > > >> Date: Thu Dec 17 20:42:05 2015 > > >> New Revision: 292410 > > >> URL: https://svnweb.freebsd.org/changeset/base/292410 > > >> > > >> Log: > > >> Exit cleanly if malloc() fails to allocate a buffer for a copy of the > > >> current MBR. > > >> > > >> PR: 205322 > > >> Submitted by: Alexander Kuleshov <kuleshovm...@gmail.com> > > >> MFC after: 1 week > > >> > > >> Modified: > > >> head/usr.sbin/boot0cfg/boot0cfg.c > > >> > > >> Modified: head/usr.sbin/boot0cfg/boot0cfg.c > > >> > > ============================================================================== > > >> --- head/usr.sbin/boot0cfg/boot0cfg.c Thu Dec 17 20:33:20 2015 > > (r292409) > > >> +++ head/usr.sbin/boot0cfg/boot0cfg.c Thu Dec 17 20:42:05 2015 > > (r292410) > > >> @@ -337,6 +337,8 @@ read_mbr(const char *disk, u_int8_t **mb > > >> return (mbr_size); > > >> } > > >> *mbr = malloc(sizeof(buf)); > > >> + if (mbr == NULL) > > >> + errx(1, "%s: unable to allocate MBR buffer", disk); > > >> memcpy(*mbr, buf, sizeof(buf)); > > >> close(fd); > > > > > > > Hi, > > > > > > Should the check be against *mbr ? > > > + if (*mbr == NULL) > > > + errx(1, "%s: unable to allocate MBR buffer", disk); > > > > Yup! > > > > +1 > > Could be write as: > if ((*mbr = malloc(sizeof(buf))) == NULL) > errx(1, "%s: unable to allocate MBR buffer", disk);
Yes, but I don't like side effects in conditionals. OTOH, changing away from that is how I fubar'd the original patch. :-/ -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
