[PATCH -next] drm/amdgpu: Fix return value check in amdgpu_allocate_static_csa()

[PATCH -next] drm/amdgpu: Fix return value check in amdgpu_allocate_static_csa()

[Wei Yongjun]

Fix the return value check which testing the wrong variable
in amdgpu_allocate_static_csa().

Fixes: 7946340fa389 ("drm/amdgpu: Move csa related code to separate file")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
index 0c590dd..a5fbc6f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
@@ -43,7 +43,7 @@ int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo
 	r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
 				domain, bo,
 				NULL, &ptr);
-	if (!bo)
+	if (!r)
 		return -ENOMEM;
 
 	memset(ptr, 0, size);

Re: [PATCH -next] drm/amdgpu: Fix return value check in amdgpu_allocate_static_csa()

[zhoucm1]

On 2018年12月04日 14:39, Wei Yongjun wrote:
> Fix the return value check which testing the wrong variable
> in amdgpu_allocate_static_csa().
>
> Fixes: 7946340fa389 ("drm/amdgpu: Move csa related code to separate file")
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
> index 0c590dd..a5fbc6f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c
> @@ -43,7 +43,7 @@ int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo
>   	r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
>   				domain, bo,
>   				NULL, &ptr);
> -	if (!bo)
> +	if (!r)
>   		return -ENOMEM;
I guess original is correct as well, if you want to change it, you can 
make like below, not your 'if (!r)':
                 if (r)
                         return r;

-David
>   
>   	memset(ptr, 0, size);
>
>
>