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authorPaolo Bonzini <pbonzini@redhat.com>2021-03-10 10:38:48 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2021-03-16 14:30:30 -0400
commit8b858f9998a9d59a9a7188f2c5c6ffb99eff6115 (patch)
treeff930400117fbe81024a68374bc5719e75f35d25 /include/qemu/timer.h
parentc963fee4b0a98e48c12ed5b063fc4aba6d018ffb (diff)
downloadfocaccia-qemu-8b858f9998a9d59a9a7188f2c5c6ffb99eff6115.tar.gz
focaccia-qemu-8b858f9998a9d59a9a7188f2c5c6ffb99eff6115.zip
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>
Diffstat (limited to 'include/qemu/timer.h')
-rw-r--r--include/qemu/timer.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/qemu/timer.h b/include/qemu/timer.h
index 5e76e3f8c2..301fa47b42 100644
--- a/include/qemu/timer.h
+++ b/include/qemu/timer.h
@@ -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);
+    }
 }
 
 /**