Christian S.J. Peron ed9e2ed449 Although we check the return value of copyin(9) while determaining how
long the string is in userspace, afterwards we call malloc(M_WAITOK),
which could sleep for an unknown amount of time. Check the return
value of copyin(9) just to be sure that nothing has changed during that
time.

Found with:	Coverity Prevent (tm)
MFC after:	1 week
2006-01-16 17:03:21 +00:00
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