Commit 0f41e31a authored by John Harrison's avatar John Harrison Committed by Joonas Lahtinen
Browse files

drm/i915/guc: Clear pointers on free 



Clear out some pointers when objects have been de-allocated. This
makes it much easier to track down use-after-free type issues.

Signed-off-by: default avatarJohn Harrison <John.C.Harrison@Intel.com>
Reviewed-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201028145826.2949180-4-John.C.Harrison@Intel.com
parent 164e57ca

drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c

+1 −0
Original line number Diff line number Diff line
@@ -220,6 +220,7 @@ int intel_guc_ads_create(struct intel_guc *guc) 
void intel_guc_ads_destroy(struct intel_guc *guc)

{

	i915_vma_unpin_and_release(&guc->ads_vma, I915_VMA_RELEASE_MAP);

	guc->ads_blob = NULL;

}



static void guc_ads_private_data_reset(struct intel_guc *guc)

drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c

+1 −0
Original line number Diff line number Diff line
@@ -210,6 +210,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct) 
	GEM_BUG_ON(ct->enabled);



	i915_vma_unpin_and_release(&ct->vma, I915_VMA_RELEASE_MAP);

	memset(ct, 0, sizeof(*ct));

}



/**

CRA Git | Maintained and supported by SUSTech CRA and CCSE