Release dmabuf reference before returning from kfd_ioctl_import_dmabuf.
amdgpu_amdkfd_gpuvm_import_dmabuf takes a reference to the underlying
GEM BO and doesn't keep the reference to the dmabuf wrapper.
Signed-off-by: Felix Kuehling <felix.kuehl...@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 222f1df1a6b6..8cc51cec988a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1736,6 +1736,7 @@ static int kfd_ioctl_import_dmabuf(struct file *filep,
}
mutex_unlock(&p->mutex);
+ dma_buf_put(dmabuf);
args->handle = MAKE_HANDLE(args->gpu_id, idr_handle);
@@ -1745,6 +1746,7 @@ static int kfd_ioctl_import_dmabuf(struct file *filep,
amdgpu_amdkfd_gpuvm_free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem,
NULL);
err_unlock:
mutex_unlock(&p->mutex);
+ dma_buf_put(dmabuf);
return r;
}
--
2.29.2
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