qemu-timer: allow freeing a NULL timer

Since 5f8e93c3e2 ("util/qemu-timer: Make timer_free() imply timer_del()", 2021-01-08)
it is not possible anymore to pass a NULL pointer to timer_free().  Previously
it would do nothing as it would simply pass NULL down to g_free().

Rectify this, which also fixes "-chardev braille" when there is no device.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-03-10 10:38:48 -05:00
parent c963fee4b0
commit 8b858f9998

View File

@ -629,8 +629,10 @@ void timer_del(QEMUTimer *ts);
*/
static inline void timer_free(QEMUTimer *ts)
{
timer_del(ts);
g_free(ts);
if (ts) {
timer_del(ts);
g_free(ts);
}
}
/**