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Enable minimal per-device resume tracing

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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>
This commit is contained in:
Linus Torvalds 2006-06-24 14:32:18 -07:00
parent eb71c87a49
commit d02f40e81e
1 changed files with 4 additions and 0 deletions
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4
drivers/base/power/resume.c
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@ -9,6 +9,7 @@
*/ */
#include <linux/device.h> #include <linux/device.h>
#include <linux/resume-trace.h>
#include "../base.h" #include "../base.h"
#include "power.h" #include "power.h"
@ -23,6 +24,8 @@ int resume_device(struct device * dev)
{ {
int error = 0; int error = 0;
TRACE_DEVICE(dev);
TRACE_RESUME(0);
down(&dev->sem); down(&dev->sem);
if (dev->power.pm_parent if (dev->power.pm_parent
&& dev->power.pm_parent->power.power_state.event) { && dev->power.pm_parent->power.power_state.event) {
@ -36,6 +39,7 @@ int resume_device(struct device * dev)
error = dev->bus->resume(dev); error = dev->bus->resume(dev);
} }
up(&dev->sem); up(&dev->sem);
TRACE_RESUME(error);
return error; return error;
} }