drm/amdkfd: Move the ignore_crat check before the CRAT table get

If the ignore_crat is set to non-zero value, it's no point getting
the CRAT table, so just move the ignore_crat check before we get the
CRAT table.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/kfd_crat.c

@@ -786,6 +786,11 @@ int kfd_create_crat_image_acpi(void **crat_image, size_t *size)
 
 	*crat_image = NULL;
 
+	if (kfd_ignore_crat()) {
+		pr_info("CRAT table disabled by module option\n");
+		return -ENODATA;
+	}
+
 	/* Fetch the CRAT table from ACPI */
 	status = acpi_get_table(CRAT_SIGNATURE, 0, &crat_table);
 	if (status == AE_NOT_FOUND) {
@@ -798,11 +803,6 @@ int kfd_create_crat_image_acpi(void **crat_image, size_t *size)
 		return -EINVAL;
 	}
 
-	if (kfd_ignore_crat()) {
-		pr_info("CRAT table disabled by module option\n");
-		return -ENODATA;
-	}
-
 	pcrat_image = kvmalloc(crat_table->length, GFP_KERNEL);
 	if (!pcrat_image)
 		return -ENOMEM;