Date: Sat, 26 May 2001 17:57:27 -0700 (PDT) From: Dima Dorfman <dd@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/syscons syscons.c Message-ID: <200105270057.f4R0vRh23932@freefall.freebsd.org>
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dd 2001/05/26 17:57:26 PDT
Modified files:
sys/dev/syscons syscons.c
Log:
In the VIRTUAL_TTY macro, add a check to make sure that the result of
SC_DEV isn't NULL; if it is, evaluate to NULL and don't dereference
NULL. Callers of VIRTUAL_TTY must already check for the result being
NULL since si_tty can be NULL, so this should be safe.
This fixes a panic when trying to switch to a different vty in an
environment such as userconfig (-c option to the kernel).
PR: 26508
Revision Changes Path
1.360 +3 -2 src/sys/dev/syscons/syscons.c
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