r8152: modify the check of the flag of PHY_RESET in set_speed function

In set_speed(), BMCR_RESET would be set when the flag of PHY_RESET
is set. Use BMCR_RESET to replace testing the flag of PHY_RESET.
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/r8152.c

@@ -2872,7 +2872,7 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
 		bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
 	}
 
-	if (test_bit(PHY_RESET, &tp->flags))
+	if (test_and_clear_bit(PHY_RESET, &tp->flags))
 		bmcr |= BMCR_RESET;
 
 	if (tp->mii.supports_gmii)
@@ -2881,7 +2881,7 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
 	r8152_mdio_write(tp, MII_ADVERTISE, anar);
 	r8152_mdio_write(tp, MII_BMCR, bmcr);
 
-	if (test_and_clear_bit(PHY_RESET, &tp->flags)) {
+	if (bmcr & BMCR_RESET) {
 		int i;
 
 		for (i = 0; i < 50; i++) {