slab: don't assume allocations succeed
authorBarret Rhoden <brho@cs.berkeley.edu>
Wed, 25 Sep 2019 19:51:38 +0000 (15:51 -0400)
committerBarret Rhoden <brho@cs.berkeley.edu>
Tue, 8 Oct 2019 21:11:11 +0000 (17:11 -0400)
A couple places assumed a MEM_ATOMIC allocation would succeed.  You can
tell they are old places since they still passed '0' for a flag.

Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>

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