[TG3]: Don't mark tg3_test_registers() as returning const.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b1e8d06..e03d1ae 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8059,7 +8059,7 @@
 }
 
 /* Only test the commonly used registers */
-static const int tg3_test_registers(struct tg3 *tp)
+static int tg3_test_registers(struct tg3 *tp)
 {
 	int i, is_5705;
 	u32 offset, read_mask, write_mask, val, save_val, read_val;