amdgpu: add error return value for finding bo by cpu mapping (v2)

If nothing is found, error should be returned.

v2: udpate the error value different from parameter check

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

diff --git a/amdgpu/amdgpu_bo.c b/amdgpu/amdgpu_bo.c
index 2f4f90f..a2fc525 100644 (file)
--- a/amdgpu/amdgpu_bo.c
+++ b/amdgpu/amdgpu_bo.c
@@ -549,8 +549,9 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
                                  amdgpu_bo_handle *buf_handle,
                                  uint64_t *offset_in_bo)
 {
-       uint32_t i;
        struct amdgpu_bo *bo;
+       uint32_t i;
+       int r = 0;
 
        if (cpu == NULL || size == 0)
                return -EINVAL;
@@ -577,10 +578,11 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
        } else {
                *buf_handle = NULL;
                *offset_in_bo = 0;
+               r = -ENXIO;
        }
        pthread_mutex_unlock(&dev->bo_table_mutex);
 
-       return 0;
+       return r;
 }
 
 int amdgpu_create_bo_from_user_mem(amdgpu_device_handle dev,