[PATCH 43/83] hsa/radeon: NULL pointer dereference bug workaround

[Oded Gabbay]

From: Alexey Skidanov <alexey.skida...@amd.com>

Signed-off-by: Alexey Skidanov <Alexey.Skidanov at amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
 drivers/gpu/hsa/radeon/kfd_sched_cik_static.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/hsa/radeon/kfd_sched_cik_static.c 
b/drivers/gpu/hsa/radeon/kfd_sched_cik_static.c
index 7573d25..7ee8125 100644
--- a/drivers/gpu/hsa/radeon/kfd_sched_cik_static.c
+++ b/drivers/gpu/hsa/radeon/kfd_sched_cik_static.c
@@ -627,8 +627,10 @@ static void cik_static_deregister_process(struct 
kfd_scheduler *scheduler,
        struct cik_static_private *priv = kfd_scheduler_to_private(scheduler);
        struct cik_static_process *pp = 
kfd_process_to_private(scheduler_process);

-       release_vmid(priv, pp->vmid);
-       kfree(pp);
+       if (priv && pp) {
+               release_vmid(priv, pp->vmid);
+               kfree(pp);
+       }
 }

 static bool allocate_hqd(struct cik_static_private *priv, unsigned int *queue)
-- 
1.9.1