sfc: Correctly initialise reset_method in siena_test_chip()

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c
index 3553d77..ba40f67 100644
--- a/drivers/net/ethernet/sfc/siena.c
+++ b/drivers/net/ethernet/sfc/siena.c
@@ -170,7 +170,7 @@
 
 static int siena_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
 {
-	enum reset_type reset_method = reset_method;
+	enum reset_type reset_method = RESET_TYPE_ALL;
 	int rc, rc2;
 
 	efx_reset_down(efx, reset_method);