drm/i915: Use managed allocations for extra uncore objects

We're slowly transitioning the init-time kzalloc's of the driver over to
DRM-managed allocations; let's make sure the uncore objects allocated
for non-root GTs are thus allocated.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906234934.3655440-4-matthew.d.roper@intel.comSigned-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

drivers/gpu/drm/i915/gt/intel_gt.c

@@ -782,7 +782,7 @@ static int intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
 	if (!gt_is_root(gt)) {
 		struct intel_uncore *uncore;
 
-		uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
+		uncore = drmm_kzalloc(&gt->i915->drm, sizeof(*uncore), GFP_KERNEL);
 		if (!uncore)
 			return -ENOMEM;
 
@@ -807,10 +807,8 @@ intel_gt_tile_cleanup(struct intel_gt *gt)
 {
 	intel_uncore_cleanup_mmio(gt->uncore);
 
-	if (!gt_is_root(gt)) {
-		kfree(gt->uncore);
+	if (!gt_is_root(gt))
 		kfree(gt);
-	}
 }
 
 int intel_gt_probe_all(struct drm_i915_private *i915)