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Commit d36f3e04 authored by Heinrich Schuchardt's avatar Heinrich Schuchardt Committed by Alex Deucher
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drm/amd/powerplay: avoid NULL pointer dereference 



if (a == NULL || a->b == NULL)
leads to a NULL pointer dereference if a == NULL.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarHeinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 887656f0

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -163,12 +163,12 @@ static int pp_hw_fini(void *handle) 
	pp_handle = (struct pp_instance *)handle;

	pp_handle = (struct pp_instance *)handle;

	eventmgr = pp_handle->eventmgr;

	eventmgr = pp_handle->eventmgr;





	if (eventmgr != NULL || eventmgr->pp_eventmgr_fini != NULL)

	if (eventmgr != NULL && eventmgr->pp_eventmgr_fini != NULL)

		eventmgr->pp_eventmgr_fini(eventmgr);

		eventmgr->pp_eventmgr_fini(eventmgr);





	smumgr = pp_handle->smu_mgr;

	smumgr = pp_handle->smu_mgr;





	if (smumgr != NULL || smumgr->smumgr_funcs != NULL ||

	if (smumgr != NULL && smumgr->smumgr_funcs != NULL &&

		smumgr->smumgr_funcs->smu_fini != NULL)

		smumgr->smumgr_funcs->smu_fini != NULL)

		smumgr->smumgr_funcs->smu_fini(smumgr);

		smumgr->smumgr_funcs->smu_fini(smumgr);