refactor and remove some now redundant code

dongle.c

@@ -466,15 +466,13 @@ fail_dr:
 
 int get_devices(void)
 {
-	char usb_path[PATH_MAX], product_path[PATH_MAX], path[PATH_MAX], *name;
+	char devices_path[PATH_MAX], mount_path[PATH_MAX];
 	struct dirent *de;
 	DIR *dir;
-	struct stat st;
-	struct device *dev;
 	int rv;
 
-	strncpy(usb_path, "/sys/bus/usb/devices/", PATH_MAX);
-	dir = opendir(usb_path);
+	strncpy(devices_path, "/sys/bus/usb/devices/", PATH_MAX);
+	dir = opendir(devices_path);
 	if (!dir) {
 		perror("opendir");
 		goto fail_dr;
@@ -485,38 +483,14 @@ int get_devices(void)
 			continue;
 		if (strstr(de->d_name, ":") || strstr(de->d_name, "usb"))
 			continue;
-		snprintf(product_path, PATH_MAX, "%s%s/product", usb_path, de->d_name);
-
-		memset(&st, 0, sizeof(st));
-		rv = stat(product_path, &st);
-		if (rv < 0) {
-			//perror("stat");
-			continue;
-		}
-
-		snprintf(path, PATH_MAX, "%s%s/", usb_path, de->d_name);
-		name = get_device_name(path);
-		if (!name)
-			continue;
-
-		dev = (struct device *)calloc(1, sizeof(*dev));
-		if (!dev) {
-			perror("calloc");
-			goto fail_dev;
-		}
-		dev->usb.product = get_usb_stat(path, "product");
-		dev->usb.product_id = get_usb_stat(path, "idProduct");
-		dev->usb.vendor_id = get_usb_stat(path, "idVendor");
-		dev->usb.if_name = name;
-		dev->ip = get_device_ip(dev->usb.if_name);
-
-		add_device(dev);
+		snprintf(mount_path, PATH_MAX, "%s%s/", devices_path, de->d_name);
+		rv = get_devices_from_path(mount_path);
+		if (rv < 0)
+			break;
 	}
 
 	closedir(dir);
 	return 0;
-fail_dev:
-	closedir(dir);
 fail_dr:
 	return -1;
 }