Message ID | 1462958385-25351-1-git-send-email-zengzhaoxiu@163.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c index 45887e3..85459b3 100644 --- a/drivers/input/serio/ams_delta_serio.c +++ b/drivers/input/serio/ams_delta_serio.c @@ -48,13 +48,9 @@ static int check_data(int data) data); return SERIO_FRAME; } - /* calculate the parity */ - for (i = 1; i < 10; i++) { - if (data & (1 << i)) - parity++; - } /* it should be odd */ - if (!(parity & 0x01)) { + parity = parity16(data & 0x3fe); + if (!parity) { dev_warn(&ams_delta_serio->dev, "paritiy check failed, data=0x%X parity=0x%X\n", data, parity);