[glib: 1/2] gdatetime: add missing g_return_() check in g_date_time_format_iso8601

[Sebastian Dröge <sdroege src gnome org>]

commit 737ca7de91ff15c95f163bb6f133ddeb9c3221d7
Author: Aleksander Morgado <aleksandermj chromium org>
Date:   Tue Oct 4 21:35:49 2022 +0000

    gdatetime: add missing g_return_() check in g_date_time_format_iso8601
    
    A clear warning is better than a NULL pointer dereference.
    
    Signed-off-by: Aleksander Morgado <aleksandermj chromium org>

 glib/gdatetime.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/glib/gdatetime.c b/glib/gdatetime.c
index f239da1839..db746564d6 100644
--- a/glib/gdatetime.c
+++ b/glib/gdatetime.c
@@ -3497,6 +3497,8 @@ g_date_time_format_iso8601 (GDateTime *datetime)
   gint64 offset;
   gchar *format = "%C%y-%m-%dT%H:%M:%S";
 
+  g_return_val_if_fail (datetime != NULL, NULL);
+
   /* if datetime has sub-second non-zero values below the second precision we
    * should print them as well */
   if (datetime->usec % G_TIME_SPAN_SECOND != 0)