[PATCH libdrm] amdgpu: add error return value for finding bo by cpu mapping

[Jerry.Zhang@xxxxxxx (Junwei Zhang)]

If nothing is found, error should be returned.

Signed-off-by: Junwei Zhang <Jerry.Zhang at amd.com>
---
 amdgpu/amdgpu_bo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/amdgpu/amdgpu_bo.c b/amdgpu/amdgpu_bo.c
index 2f4f90f..3812c5e 100644
--- a/amdgpu/amdgpu_bo.c
+++ b/amdgpu/amdgpu_bo.c
@@ -550,6 +550,7 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
 				  uint64_t *offset_in_bo)
 {
 	uint32_t i;
+	int r = 0;
 	struct amdgpu_bo *bo;
 
 	if (cpu == NULL || size == 0)
@@ -577,10 +578,11 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
 	} else {
 		*buf_handle = NULL;
 		*offset_in_bo = 0;
+		r = -EINVAL;
 	}
 	pthread_mutex_unlock(&dev->bo_table_mutex);
 
-	return 0;
+	return r;
 }
 
 int amdgpu_create_bo_from_user_mem(amdgpu_device_handle dev,
-- 
1.9.1