libudev: fix "subsystem" value

[elogind.git] / udev / lib / libudev-device.c

diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index 782d6625497675430894d03908b585a546413b03..76ef298a3420aec4b0f9fbb3ae4973c6b83aa02c 100644 (file)
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -397,7 +397,7 @@ const char *udev_device_get_subsystem(struct udev_device *udev_device)
                return udev_device->subsystem;
 
        /* read "subsytem" link */
-       if (util_get_sys_subsystem(udev_device->udev, udev_device->syspath, subsystem, sizeof(subsystem)) == 0) {
+       if (util_get_sys_subsystem(udev_device->udev, udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
                udev_device->subsystem = strdup(subsystem);
                return udev_device->subsystem;
        }