Patch "drm:amd:amdgpu: Fix missing buffer object unlock in failure path" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm:amd:amdgpu: Fix missing buffer object unlock in failure path

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amd-amdgpu-fix-missing-buffer-object-unlock-in-f.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 64039442de3131b338365a36ebc282740c5f9f2d
Author: Sukrut Bellary <sukrut.bellary@xxxxxxxxx>
Date:   Wed May 3 16:15:07 2023 -0700

    drm:amd:amdgpu: Fix missing buffer object unlock in failure path
    
    [ Upstream commit 60ecaaf54886b0642d5c4744f7fbf1ff0d6b3e42 ]
    
    smatch warning -
    1) drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:3615 gfx_v9_0_kiq_resume()
    warn: inconsistent returns 'ring->mqd_obj->tbo.base.resv'.
    
    2) drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:6901 gfx_v10_0_kiq_resume()
    warn: inconsistent returns 'ring->mqd_obj->tbo.base.resv'.
    
    Signed-off-by: Sukrut Bellary <sukrut.bellary@xxxxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0e3ff5c3766ed..72410a2d4e6bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -6702,8 +6702,10 @@ static int gfx_v10_0_kiq_resume(struct amdgpu_device *adev)
 		return r;
 
 	r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&ring->mqd_ptr);
-	if (unlikely(r != 0))
+	if (unlikely(r != 0)) {
+		amdgpu_bo_unreserve(ring->mqd_obj);
 		return r;
+	}
 
 	gfx_v10_0_kiq_init_queue(ring);
 	amdgpu_bo_kunmap(ring->mqd_obj);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 629671f66b319..acef2227d992b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3800,8 +3800,10 @@ static int gfx_v9_0_kiq_resume(struct amdgpu_device *adev)
 		return r;
 
 	r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&ring->mqd_ptr);
-	if (unlikely(r != 0))
+	if (unlikely(r != 0)) {
+		amdgpu_bo_unreserve(ring->mqd_obj);
 		return r;
+	}
 
 	gfx_v9_0_kiq_init_queue(ring);
 	amdgpu_bo_kunmap(ring->mqd_obj);