Konstantin Belousov 31241fa778 Fix some cosmetic issues with the use of kmem_malloc() in the i386 LDT
sysarch(2) code.

Use M_ZERO instead of explicit bzero(9).  Do not check for failed
allocation when M_WAITOK is specified (which is specified always).
Use malloc(9) when allocating memory for the intermediate copy of the
user-supplied buffer.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-06-15 05:01:35 +00:00
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