This is the minimal resume trace code to find which device resume (if
any) results in problems. Usually, you'd use the information this
generates as a starting point to adding more fine-grained trace event
points.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
*/
#include <linux/device.h>
+#include <linux/resume-trace.h>
#include "../base.h"
#include "power.h"
{
int error = 0;
+ TRACE_DEVICE(dev);
+ TRACE_RESUME(0);
down(&dev->sem);
if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state.event) {
error = dev->bus->resume(dev);
}
up(&dev->sem);
+ TRACE_RESUME(error);
return error;
}