drm/nouveau: protect ramht_find() from oopsing if on channel without ramht

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This doesn't actually happen now, but there's a test case for an earlier
kernel where a GPU error is signalled on one of nv50's fake channels, and
the ramht lookup by the IRQ handler triggered an oops.

This adds a check for RAMHT's existance on a channel before looking up
an object handle.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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Ben Skeggs 2010-09-03 10:25:02 +10:00

parent 185abeccab

commit 2941482ead

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/nouveau/nouveau_ramht.c

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