Date: Wed, 13 Apr 2005 13:56:17 +0000 (UTC) From: Tai-hwa Liang <avatar@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern tty.c Message-ID: <200504131356.j3DDuHdC053368@repoman.freebsd.org>
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avatar 2005-04-13 13:56:17 UTC
FreeBSD src repository
Modified files:
sys/kern tty.c
Log:
According to the comment in struct tty, t_modem is optional; hence we should
guard against NULL t_modem entry. Otherwise, driver doesn't have t_modem
callback implemented(such like sys/dev/usb/ucycom.c) would panic when
someone opens the driver's associated tty device.
Reviewed by: phk, sam (mentor)
Revision Changes Path
1.249 +4 -2 src/sys/kern/tty.c
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