[gnome-bluetooth/wip/hadess/fix-keyboard-cancel: 1/10] lib: Add guards to helper functions

[Bastien Nocera <hadess src gnome org>]

commit 5f9f962c4d67f7bdde3b53e402028bbc65319b20
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Feb 19 12:23:08 2021 +0100

    lib: Add guards to helper functions
    
    Clear warnings are better than crashes.

 lib/bluetooth-client.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/lib/bluetooth-client.c b/lib/bluetooth-client.c
index 5a149353..607da321 100644
--- a/lib/bluetooth-client.c
+++ b/lib/bluetooth-client.c
@@ -163,9 +163,10 @@ compare_address (GtkTreeStore *store,
 
 static gboolean
 get_iter_from_path (GtkTreeStore *store,
-                   GtkTreeIter *iter,
-                   const char *path)
+                   GtkTreeIter  *iter,
+                   const char   *path)
 {
+       g_return_val_if_fail (path != NULL, FALSE);
        return iter_search(store, iter, NULL, compare_path, (gpointer) path);
 }
 
@@ -174,6 +175,7 @@ get_iter_from_proxy(GtkTreeStore *store,
                    GtkTreeIter *iter,
                    GDBusProxy *proxy)
 {
+       g_return_val_if_fail (proxy != NULL, FALSE);
        return iter_search(store, iter, NULL, compare_path,
                           (gpointer) g_dbus_proxy_get_object_path (proxy));
 }
@@ -186,6 +188,9 @@ get_iter_from_address (GtkTreeStore *store,
 {
        GtkTreeIter parent_iter;
 
+       g_return_val_if_fail (address != NULL, FALSE);
+       g_return_val_if_fail (adapter != NULL, FALSE);
+
        if (get_iter_from_proxy (store, &parent_iter, adapter) == FALSE)
                return FALSE;