drm/amdgpu: remove useless BUG_ONs

Dereferencing NULL pointers will cause a BUG anyway. No need to do
an explicit check.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 1d2b6ca..e06d791 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -212,10 +212,6 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
        struct kgd_mem **mem = (struct kgd_mem **) mem_obj;
        int r;
 
-       BUG_ON(kgd == NULL);
-       BUG_ON(gpu_addr == NULL);
-       BUG_ON(cpu_ptr == NULL);
-
        *mem = kmalloc(sizeof(struct kgd_mem), GFP_KERNEL);
        if ((*mem) == NULL)
                return -ENOMEM;
@@ -269,8 +265,6 @@ void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
 {
        struct kgd_mem *mem = (struct kgd_mem *) mem_obj;
 
-       BUG_ON(mem == NULL);
-
        amdgpu_bo_reserve(mem->bo, true);
        amdgpu_bo_kunmap(mem->bo);
        amdgpu_bo_unpin(mem->bo);

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index a9e6aea..74fcb8b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -812,8 +812,6 @@ static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
        struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
        const union amdgpu_firmware_header *hdr;
 
-       BUG_ON(kgd == NULL);
-
        switch (type) {
        case KGD_ENGINE_PFP:
                hdr = (const union amdgpu_firmware_header *)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index b127259..c70c8e1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -775,8 +775,6 @@ static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
        struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
        const union amdgpu_firmware_header *hdr;
 
-       BUG_ON(kgd == NULL);
-
        switch (type) {
        case KGD_ENGINE_PFP:
                hdr = (const union amdgpu_firmware_header *)