usbreset: Allow idProduct and idVendor to be 0

idProduct at least, is valid as 0, and I guess idVendor can
typically be left at 0 while developing some new usb thing.

Signed-off-by: Kristoffer Ellersgaard Koch <kristoffer.koch@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/usbreset.c b/usbreset.c
index 0fcba41..68f87cb 100644
--- a/usbreset.c
+++ b/usbreset.c
@@ -65,6 +65,8 @@ static struct usbentry *parse_devlist(DIR *d)
 	} while (!isdigit(e->d_name[0]) || strchr(e->d_name, ':'));
 
 	memset(&dev, 0, sizeof(dev));
+	dev.vendor_id = -1;
+	dev.product_id = -1;
 
 	attr = sysfs_attr(e->d_name, "busnum");
 	if (attr)
@@ -90,7 +92,7 @@ static struct usbentry *parse_devlist(DIR *d)
 	if (attr)
 		strcpy(dev.product_name, attr);
 
-	if (dev.bus_num && dev.dev_num && dev.vendor_id && dev.product_id)
+	if (dev.bus_num && dev.dev_num && dev.vendor_id >= 0 && dev.product_id >= 0)
 		return &dev;
 
 	return NULL;