From: Michael Gernoth <michael@gernoth.net>
Date: Sun, 5 Jun 2016 17:23:32 +0000 (+0200)
Subject: hmuartlgw: simplify crc check
X-Git-Tag: v0.103~6
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/commitdiff_plain/b1d2ccc2e0f45169d6dda672c80a5aaf4770e7a3?ds=sidebyside

hmuartlgw: simplify crc check
---

diff --git a/hmuartlgw.c b/hmuartlgw.c
index 2e6757a..4c274cf 100644
--- a/hmuartlgw.c
+++ b/hmuartlgw.c
@@ -413,10 +413,8 @@ int hmuartlgw_poll(struct hmuartlgw_dev *dev, int timeout)
 		return -1;
 	}
 
-	crc = crc16(dev->buf, dev->pos - 2);
-	if ((((crc >> 8) & 0xff) == dev->buf[dev->pos - 2]) &&
-			((crc & 0xff) == dev->buf[dev->pos - 1])) {
-
+	crc = crc16(dev->buf, dev->pos);
+	if (crc == 0x0000) {
 		if (debug)
 			hexdump(dev->buf, dev->pos, "UARTLGW > ");