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CVS commit: src/sys/kern

Module Name:    src
Committed By:   drochner
Date:           Mon Jul 28 14:22:14 UTC 2008

Modified Files:
        src/sys/kern: subr_autoconf.c

Log Message:
Avoid NULL pointer dereference on power handler deregistration if
it was not registered before. I assume that a lot of drivers do not
proper bookkeeping in the case the attach() exits early due to
errors. This is hard to fix and to test, so just be generous here.

To generate a diff of this commit:
cvs rdiff -r1.156 -r1.157 src/sys/kern/subr_autoconf.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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