alias: Fix possible segfault

[project/netifd.git] / alias.c

diff --git a/alias.c b/alias.c
index cef125f..1f23da0 100644 (file)
--- a/alias.c
+++ b/alias.c
@@ -112,6 +112,9 @@ alias_device_create(const char *name, struct blob_attr *attr)
        struct alias_device *alias;
 
        alias = calloc(1, sizeof(*alias) + strlen(name) + 1);
+       if (!alias)
+               return NULL;
+
        strcpy(alias->name, name);
        alias->dev.set_state = alias_device_set_state;
        alias->dev.hidden = true;
@@ -130,6 +133,8 @@ static void alias_device_free(struct device *dev)
        struct alias_device *alias;
 
        alias = container_of(dev, struct alias_device, dev);
+       device_remove_user(&alias->new_dep);
+       device_remove_user(&alias->dep);
        avl_delete(&aliases, &alias->avl);
        free(alias);
 }