From: Martin Ling <redacted>
Date: Sat, 7 Dec 2013 16:50:27 +0000 (+0000)
Subject: Check return value of GetOverlappedResult().
X-Git-Tag: libserialport-0.1.0~26
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=1622ef60b032522edfecca46bd23ec1bf4b0ee64;p=libserialport.git

Check return value of GetOverlappedResult().
---

diff --git a/serialport.c b/serialport.c
index e42e757..b7dd66a 100644
--- a/serialport.c
+++ b/serialport.c
@@ -1155,7 +1155,8 @@ enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, size_t count
 		RETURN_FAIL("ReadFile() failed");
 
 	/* Get number of bytes read. */
-	GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE);
+	if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0)
+		RETURN_FAIL("GetOverlappedResult() failed");
 
 	RETURN_VALUE("%d", bytes_read);
 #else