Author: joerg Date: Fri Aug 8 15:04:02 2014 New Revision: 269722 URL: http://svnweb.freebsd.org/changeset/base/269722
Log: MFC r269470: avoid divide-by-zero panic when setting baudrate to 0. Modified: stable/8/sys/dev/usb/serial/umcs.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/dev/ (props changed) stable/8/sys/dev/usb/ (props changed) Modified: stable/8/sys/dev/usb/serial/umcs.c ============================================================================== --- stable/8/sys/dev/usb/serial/umcs.c Fri Aug 8 14:56:04 2014 (r269721) +++ stable/8/sys/dev/usb/serial/umcs.c Fri Aug 8 15:04:02 2014 (r269722) @@ -1059,7 +1059,10 @@ umcs7840_calc_baudrate(uint32_t rate, ui for (i = 0; i < umcs7840_baudrate_divisors_len - 1 && !(rate > umcs7840_baudrate_divisors[i] && rate <= umcs7840_baudrate_divisors[i + 1]); ++i); - *divisor = umcs7840_baudrate_divisors[i + 1] / rate; + if (rate == 0) + *divisor = 1; /* XXX */ + else + *divisor = umcs7840_baudrate_divisors[i + 1] / rate; /* 0x00 .. 0x70 */ *clk = i << MCS7840_DEV_SPx_CLOCK_SHIFT; return (0); _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"