diff options
| -rw-r--r-- | udev/udev-event.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/udev/udev-event.c b/udev/udev-event.c index 27bb5eb79a..32b45e9bac 100644 --- a/udev/udev-event.c +++ b/udev/udev-event.c @@ -231,8 +231,9 @@ found: break; case SUBST_DRIVER: if (event->dev_parent != NULL) { - const char *driver = udev_device_get_driver(event->dev_parent); + const char *driver; + driver = udev_device_get_driver(event->dev_parent); if (driver == NULL) break; util_strlcat(string, driver, maxsize); @@ -398,6 +399,8 @@ found: struct udev_list_entry *list_entry; list_entry = udev_device_get_devlinks_list_entry(dev); + if (list_entry == NULL) + break; util_strlcat(string, &udev_list_entry_get_name(list_entry)[devlen], maxsize); udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry)) { util_strlcat(string, " ", maxsize); @@ -426,6 +429,8 @@ found: if (list_entry == NULL) break; value = udev_list_entry_get_value(list_entry); + if (value == NULL) + break; dbg(event->udev, "substitute env '%s=%s'\n", attr, value); util_strlcat(string, value, maxsize); break; |