amd/amdkfd: fix a kfd_process ref leak

yifancom · alexdeucher · commit 90237b16ec1d · 2025-05-29T10:57:02.000-04:00
This patch is to fix a kfd_prcess ref leak.

Signed-off-by: Yifan Zhang &lt;yifan1.zhang@amd.com&gt;
Reviewed-by: Philip Yang &lt;Philip.Yang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -1350,6 +1350,7 @@ void kfd_signal_poison_consumed_event(struct kfd_node *dev, u32 pasid)
 	user_gpu_id = kfd_process_get_user_gpu_id(p, dev->id);
 	if (unlikely(user_gpu_id == -EINVAL)) {
 		WARN_ONCE(1, "Could not get user_gpu_id from dev->id:%x\n", dev->id);
+		kfd_unref_process(p);
 		return;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -1350,6 +1350,7 @@ void kfd_signal_poison_consumed_event(struct kfd_node *dev, u32 pasid)`
`1350`	`1350`	`user_gpu_id = kfd_process_get_user_gpu_id(p, dev->id);`
`1351`	`1351`	`if (unlikely(user_gpu_id == -EINVAL)) {`
`1352`	`1352`	`WARN_ONCE(1, "Could not get user_gpu_id from dev->id:%x\n", dev->id);`
	`1353`	`+ kfd_unref_process(p);`
`1353`	`1354`	`return;`
`1354`	`1355`	`}`
`1355`	`1356`