[PATCH] drm/xe/xe_pmu: Add a null check for xe gt

[Riana Tauro]

The PMU initialization function exits if gt is invalid,
eliminating the need for additional checks. However, absence
of these checks causes static analysis tool warnings

Add a null check for gt to avoid static analysis tool warnings

Signed-off-by: Riana Tauro <riana.tauro at intel.com>
---
 drivers/gpu/drm/xe/xe_pmu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_pmu.c b/drivers/gpu/drm/xe/xe_pmu.c
index 69df0e3520a5..5550ed30018f 100644
--- a/drivers/gpu/drm/xe/xe_pmu.c
+++ b/drivers/gpu/drm/xe/xe_pmu.c
@@ -141,6 +141,8 @@ static bool event_gt_forcewake(struct perf_event *event)
 		return true;
 
 	gt = xe_device_get_gt(xe, config_to_gt_id(config));
+	if (!gt)
+		return false;
 
 	fw_ref = kzalloc(sizeof(*fw_ref), GFP_KERNEL);
 	if (!fw_ref)
@@ -211,11 +213,10 @@ static bool event_param_valid(struct perf_event *event)
 static void xe_pmu_event_destroy(struct perf_event *event)
 {
 	struct xe_device *xe = container_of(event->pmu, typeof(*xe), pmu.base);
-	struct xe_gt *gt;
 	unsigned int *fw_ref = event->pmu_private;
+	struct xe_gt *gt = xe_device_get_gt(xe, config_to_gt_id(event->attr.config));
 
-	if (fw_ref) {
-		gt = xe_device_get_gt(xe, config_to_gt_id(event->attr.config));
+	if (fw_ref && gt) {
 		xe_force_wake_put(gt_to_fw(gt), *fw_ref);
 		kfree(fw_ref);
 		event->pmu_private = NULL;
-- 
2.47.1