i2c: piix4: Fix port number check on release

The port number shift is still hard-coded to 1 while it now depends
on the hardware.

Thankfully 0 is always 0 no matter how you shift it, so this was a
bug without consequences.

Signed-off-by: Jean Delvare <[email protected]>
Fixes: 0fe1619 ("i2c: piix4: Fix SMBus port selection for AMD Family 17h chips")
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

Author: jdelvare

drivers/i2c/busses/i2c-piix4.c

@@ -983,7 +983,7 @@ static void piix4_adap_remove(struct i2c_adapter *adap)
 
 	if (adapdata->smba) {
 		i2c_del_adapter(adap);
-		if (adapdata->port == (0 << 1)) {
+		if (adapdata->port == (0 << piix4_port_shift_sb800)) {
 			release_region(adapdata->smba, SMBIOSIZE);
 			if (adapdata->sb800_main)
 				release_region(SB800_PIIX4_SMB_IDX, 2);