From: Andrew 'Necromant' Andrianov <andrew@ncrmnt.org>
Date: Sun, 21 Dec 2014 11:26:57 +0000 (+0300)
Subject: Do not segfault when no device is present
X-Git-Tag: v0.1~21
X-Git-Url: http://git.linex4red.de/pub/pl2303-ft232-gpio.git/commitdiff_plain/13516fc96d4f88897f182212e834869259e6d783

Do not segfault when no device is present

Fixes #1

Signed-off-by: Andrew 'Necromant' Andrianov <andrew@ncrmnt.org>
---

diff --git a/main.c b/main.c
index f6b1643..f24e40f 100644
--- a/main.c
+++ b/main.c
@@ -159,8 +159,8 @@ void check_handle(usb_dev_handle **h)
 
 	/* TODO: Make a proper way to select different PL2303 devices. */
 	*h = nc_usb_open(I_VENDOR_NUM, I_PRODUCT_NUM, NULL, NULL, NULL);
-	if (!h) {
-		fprintf(stderr, "No PL2303 USB device found ;(\n");
+	if (!(*h)) {
+		fprintf(stderr, "No PL2303 USB device %04x:%04x found ;(\n", I_VENDOR_NUM, I_PRODUCT_NUM);
 		exit(1);
 	}
 
@@ -231,9 +231,5 @@ int main(int argc, char* argv[])
 
 		}
 	}
-
 	return 0;
-
-	//GP0 == LDR
-	//GP1 == RST
 }