amd/amdkfd: fix a kfd_process ref leak

[ Upstream commit 90237b16ec1d7afa16e2173cc9a664377214cdd9 ]

This patch is to fix a kfd_prcess ref leak.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index 2880ed96ac2e335406a03cdf3a89f63d6819abcd..80d567ba94846711d389aebf6ef6c340e2c70349 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -1340,6 +1340,7 @@ void kfd_signal_poison_consumed_event(struct kfd_dev *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;
        }