libudev: device - free values before updating them

diff --git a/libudev/libudev-device.c b/libudev/libudev-device.c
index cbbddaeff044c6df548bdb1c42cf61f113a69126..9d1e546c83dd304c84484cc21585a27726b092bb 100644 (file)
--- a/libudev/libudev-device.c
+++ b/libudev/libudev-device.c
@@ -1282,6 +1282,7 @@ const char *udev_device_get_devpath_old(struct udev_device *udev_device)
 
 int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
 {
+       free(udev_device->devpath_old);
        udev_device->devpath_old = strdup(devpath_old);
        if (udev_device->devpath_old == NULL)
                return -ENOMEM;
@@ -1296,6 +1297,7 @@ const char *udev_device_get_knodename(struct udev_device *udev_device)
 
 int udev_device_set_knodename(struct udev_device *udev_device, const char *knodename)
 {
+       free(udev_device->knodename);
        udev_device->knodename = strdup(knodename);
        if (udev_device->knodename == NULL)
                return -ENOMEM;