drm/amdgpu: refine vpe firmware loading

refine vpe firmware loading
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c

@@ -232,13 +232,11 @@ int amdgpu_vpe_init_microcode(struct amdgpu_vpe *vpe)
 {
 	struct amdgpu_device *adev = vpe->ring.adev;
 	const struct vpe_firmware_header_v1_0 *vpe_hdr;
-	char fw_prefix[32], fw_name[64];
+	char fw_prefix[32];
 	int ret;
 
 	amdgpu_ucode_ip_version_decode(adev, VPE_HWIP, fw_prefix, sizeof(fw_prefix));
-	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s.bin", fw_prefix);
-
-	ret = amdgpu_ucode_request(adev, &adev->vpe.fw, fw_name);
+	ret = amdgpu_ucode_request(adev, &adev->vpe.fw, "amdgpu/%s.bin", fw_prefix);
 	if (ret)
 		goto out;