Mark Johnston a76de17715 linuxkpi: Handle a NULL cache pointer in kmem_cache_destroy()
This is compatible with Linux, and some driver error paths depend on it.

Reviewed by:	bz, emaste
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32337
2021-10-06 14:49:39 -04:00
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