CVS commit: src/sys/external/bsd/drm2/dist/drm/ttm

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sat Dec 24 15:46:50 UTC 2016

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/ttm: ttm_tt.c

Log Message:
Guarantee no zero-size uao/kmem allocations via ttm.

It may be that all callers guarantee no zero-size ttm objects, but I
can't prove that in five minutes of browsing callers.  Rather than
add a KASSERT, lacking proof, we'll add a warning message so that if
it does happen then it happens noisily, but we'll also prevent the
bad consequences of passing zero into uao_create by rounding up to a
harmless nonzero allocation.

XXX pullup-7


To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/external/bsd/drm2/dist/drm/ttm/ttm_tt.c

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