drm/vc4: Fix NULL pointer dereference in vc4_save_hang_state()

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When saving BOs in the hang state we skip one entry of the
kernel_state->bo[] array, thus leaving it to NULL. This leads to a NULL
pointer dereference when, later in this function, we iterate over all
BOs to check their ->madv state.

Fixes: ca26d28bba ("drm/vc4: improve throughput by pipelining binning and rendering jobs")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180118145821.22344-1-boris.brezillon@free-electrons.com

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Boris Brezillon 2018-01-18 15:58:21 +01:00 • committed by Eric Anholt

parent f61145f1a4

commit 17b11b76b8

1 changed files with 6 additions and 6 deletions

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drivers/gpu/drm/vc4/vc4_gem.c

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