Commit a05e2c37 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk
Browse files

xen/time: Check that the per_cpu data structure has data before freeing.



We don't check whether the per_cpu data structure has actually
been freed in the past. This checks it and if it has been freed
in the past then just continues on without double-freeing.

Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent c9d76a24
......@@ -434,10 +434,13 @@ void xen_teardown_timer(int cpu)
struct clock_event_device *evt;
BUG_ON(cpu == 0);
evt = &per_cpu(xen_clock_events, cpu).evt;
if (evt->irq >= 0) {
unbind_from_irqhandler(evt->irq, NULL);
evt->irq = -1;
kfree(per_cpu(xen_clock_events, cpu).name);
per_cpu(xen_clock_events, cpu).name = NULL;
}
}
void xen_setup_cpu_clockevents(void)
......
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