From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Currently the error returns paths are unlocking lock kiq->ring_lock
however it seems this should be dev->gfx.kiq.ring_lock as this
is the lock that is being locked and unlocked around the ring
operations. This looks like a bug, fix it by unlocking the
correct lock.
[ Note: untested ]
Addresses-Coverity: ("Missing unlock")
Fixes: 82478876eaac ("drm/amdgpu: protect ring overrun")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index b120f9160f13..edaa50d850a6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -430,7 +430,7 @@ static int gmc_v10_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
if (r) {
amdgpu_ring_undo(ring);
- spin_unlock(&kiq->ring_lock);
+ spin_unlock(&adev->gfx.kiq.ring_lock);
return -ETIME;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 0a6026308343..055ecba754ff 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -624,7 +624,7 @@ static int gmc_v9_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
if (r) {
amdgpu_ring_undo(ring);
- spin_unlock(&kiq->ring_lock);
+ spin_unlock(&adev->gfx.kiq.ring_lock);
return -ETIME;
}
--
2.25.1
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