Pacify a gcc warning in xi_handle_focus_change

* src/xterm.c (xi_handle_focus_change): Pacify a wrong warning on
gcc (Debian 10.2.1-6).

xterm.c: In function ‘xi_handle_focus_change’:
xterm.c:12564:25: warning: ‘source’ may be used uninitialized in
this function [-Wmaybe-uninitialized]
12564 |       ie.device = source->name;
      |                   ~~~~~~^~~~~~

diff --git a/src/xterm.c b/src/xterm.c
index 97985c8d9e7459505a59277d6699b11e6038144e..54bf6566572af3a39cc03eac56cdc30efca2140f 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -12481,7 +12481,7 @@ xi_handle_focus_change (struct x_display_info *dpyinfo)
 {
   struct input_event ie;
   struct frame *focus, *new;
-  struct xi_device_t *device, *source;
+  struct xi_device_t *device, *source = NULL;
   ptrdiff_t i;
   Time time;
 #ifdef USE_GTK