Linux Virtualization - Aug 2023 - [PATCH -next 1/7] drm/amdkfd: Remove unnecessary NULL values

The NULL initialization of the pointers assigned by kzalloc() first is
not necessary, because if the kzalloc() failed, the pointers will be
assigned NULL, otherwise it works as usual. so remove it.

Signed-off-by: Ruan Jinjie <ruanjinjie at huawei.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
index 863cf060af48..d01bb57733b3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
@@ -48,7 +48,7 @@ int pipe_priority_map[] = {
 
 struct kfd_mem_obj *allocate_hiq_mqd(struct kfd_node *dev, struct
queue_properties *q)
 {
-	struct kfd_mem_obj *mqd_mem_obj = NULL;
+	struct kfd_mem_obj *mqd_mem_obj;
 
 	mqd_mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_KERNEL);
 	if (!mqd_mem_obj)
@@ -64,7 +64,7 @@ struct kfd_mem_obj *allocate_hiq_mqd(struct kfd_node *dev,
struct queue_properti
 struct kfd_mem_obj *allocate_sdma_mqd(struct kfd_node *dev,
 					struct queue_properties *q)
 {
-	struct kfd_mem_obj *mqd_mem_obj = NULL;
+	struct kfd_mem_obj *mqd_mem_obj;
 	uint64_t offset;
 
 	mqd_mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_KERNEL);
-- 
2.34.1

Am 09.08.23 um 05:44 schrieb Ruan Jinjie:
> The NULL initialization of the pointers assigned by kzalloc() first is
> not necessary, because if the kzalloc() failed, the pointers will be
> assigned NULL, otherwise it works as usual. so remove it.
>
> Signed-off-by: Ruan Jinjie <ruanjinjie at huawei.com>
Reviewed-by: Christian K?nig <christian.koenig at amd.com> for this one, 
the amd display code and the radeon stuff.

Thanks,
Christian.
> ---
>   drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
> index 863cf060af48..d01bb57733b3 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
> @@ -48,7 +48,7 @@ int pipe_priority_map[] = {
>   
>   struct kfd_mem_obj *allocate_hiq_mqd(struct kfd_node *dev, struct
queue_properties *q)
>   {
> -	struct kfd_mem_obj *mqd_mem_obj = NULL;
> +	struct kfd_mem_obj *mqd_mem_obj;
>   
>   	mqd_mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_KERNEL);
>   	if (!mqd_mem_obj)
> @@ -64,7 +64,7 @@ struct kfd_mem_obj *allocate_hiq_mqd(struct kfd_node
*dev, struct queue_properti
>   struct kfd_mem_obj *allocate_sdma_mqd(struct kfd_node *dev,
>   					struct queue_properties *q)
>   {
> -	struct kfd_mem_obj *mqd_mem_obj = NULL;
> +	struct kfd_mem_obj *mqd_mem_obj;
>   	uint64_t offset;
>   
>   	mqd_mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_KERNEL);