net: usb: mcs7830: fix non-DM ingress path

The mcs7830_recv() (non-DM) function discards good packets and tries to process "bad" packets due to incorrect test condition. Fix the condition and return the proper value as described in function doc. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>

net: usb: mcs7830: fix non-DM ingress path
The mcs7830_recv() (non-DM) function discards good packets and tries to process "bad" packets due to incorrect test condition. Fix the condition and return the proper value as described in function doc. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Uri Mashiach · Marek Vasut
1 parent a375ff8e14
Showing 1 changed file with 4 additions and 2 deletions Side-by-side Diff
drivers/usb/eth/mcs7830.c
@@ -622,10 +622,12 @@
 	int len;
  
 	len = mcs7830_recv_common(ueth, buf);
-	if (len <= 0)
+	if (len >= 0) {
 		net_process_received_packet(buf, len);
+		return 0;
+	}
  
-	return 0;
+	return len;
 }
  
 /*
...	...	@@ -622,10 +622,12 @@
622	622	int len;
623	623
624	624	len = mcs7830_recv_common(ueth, buf);
625		- if (len <= 0)
	625	+ if (len >= 0) {
626	626	net_process_received_packet(buf, len);
	627	+ return 0;
	628	+ }
627	629
628		- return 0;
	630	+ return len;
629	631	}
630	632
631	633	/*