From: Jonathan Marek jonathan@marek.ca
commit ce86c239e4d218ae6040bec18e6d19a58edb8b7c upstream.
If a6xx_hw_init() fails before creating the shadow_bo, the a6xx_pm_suspend code referencing it will crash. Change the condition to one that avoids this problem (note: creation of shadow_bo is behind this same condition)
Fixes: e8b0b994c3a5 ("drm/msm/a6xx: Clear shadow on suspend") Signed-off-by: Jonathan Marek jonathan@marek.ca Reviewed-by: Akhil P Oommen akhilpo@codeaurora.org Link: https://lore.kernel.org/r/20210513171431.18632-6-jonathan@marek.ca Signed-off-by: Rob Clark robdclark@chromium.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -1128,7 +1128,7 @@ static int a6xx_pm_suspend(struct msm_gp if (ret) return ret;
- if (adreno_gpu->base.hw_apriv || a6xx_gpu->has_whereami) + if (a6xx_gpu->shadow_bo) for (i = 0; i < gpu->nr_rings; i++) a6xx_gpu->shadow[i] = 0;