i2c: i801: Drop useless masking in i801_access

I went all the way back to kernel 2.6.12 and that masking was never
needed. I suppose it was there in anticipation of software PEC
support, but that was never added to the driver (and never will be,
as this is made obsolete by hardware PEC).

I'm also removing initialization to 0, which is not needed either,
and would prevent the compiler from reporting an actual usage of
uninitialized variables.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-i801.c

@@ -792,7 +792,7 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 {
 	int hwpec;
 	int block = 0;
-	int ret = 0, xact = 0;
+	int ret, xact;
 	struct i801_priv *priv = i2c_get_adapdata(adap);
 
 	mutex_lock(&priv->acpi_lock);
@@ -904,7 +904,7 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 	if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
 		goto out;
 
-	switch (xact & 0x7f) {
+	switch (xact) {
 	case I801_BYTE:	/* Result put in SMBHSTDAT0 */
 	case I801_BYTE_DATA:
 		data->byte = inb_p(SMBHSTDAT0(priv));