This patch is Reviewed-by: Rex Zhu <Rex.Zhu at amd.com> Best Regards Rex -----Original Message----- From: amd-gfx [mailto:amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Xiangliang Yu Sent: Wednesday, November 30, 2016 3:03 PM To: amd-gfx at lists.freedesktop.org Cc: Yu, Xiangliang Subject: [PATCH 6/6] drm/amd/powerplay: Fix potential NULL pointer issue If doesn't enable dpm, the powerplay will not allocate memory for hw management. So, hw_init_power_state_table function will reference NULL pointer when resetting. Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com> --- drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 51a3607..c81cf14 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1004,12 +1004,12 @@ int amd_powerplay_reset(void *handle) if (ret) return ret; - hw_init_power_state_table(instance->hwmgr); - if ((amdgpu_dpm == 0) || cgs_is_virtualization_enabled(instance->smu_mgr->device)) return 0; + hw_init_power_state_table(instance->hwmgr); + if (eventmgr == NULL || eventmgr->pp_eventmgr_init == NULL) return -EINVAL; -- 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx at lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
