amdkfd: Check kvmalloc return before memcpy

If we can't kvmalloc the pcrat_image, then we shouldn't memcpy

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index cdd5032..a0acf23 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -804,10 +804,10 @@ int kfd_create_crat_image_acpi(void **crat_image, size_t *size)
        }
 
        pcrat_image = kvmalloc(crat_table->length, GFP_KERNEL);
-       memcpy(pcrat_image, crat_table, crat_table->length);
        if (!pcrat_image)
                return -ENOMEM;
 
+       memcpy(pcrat_image, crat_table, crat_table->length);
        *crat_image = pcrat_image;
        *size = crat_table->length;