diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
index c61648ef3920dcaacab074666259df076d30593a..d924486490c16d9920761b0af719b9b1ba827567 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
@@ -714,8 +714,8 @@ static void guc_ads_private_data_reset(struct intel_guc *guc)
 	if (!size)
 		return;
 
-	memset((void *)guc->ads_blob + guc_ads_private_data_offset(guc), 0,
-	       size);
+	iosys_map_memset(&guc->ads_map, guc_ads_private_data_offset(guc),
+			 0, size);
 }
 
 /**