sysdevs should be suspended/resumed with IRQs disabled; if something
reenables them by mistake, we want to know early.
Signed-off-by: Pavel Machek <pavel@xxxxxxx>
---
commit fc3bccaf69e6c05464e7154369639bd5c96ccdc1
tree bf960093ddb840242a00b4ec456ec79472b1c2ad
parent 308e9d5309f378209e931f63f729806ec0a4d9f1
author Pavel <pavel@xxxxxxxxxx> Sat, 12 Apr 2008 11:52:05 +0200
committer Pavel <pavel@xxxxxxxxxx> Sat, 12 Apr 2008 11:52:05 +0200
drivers/ata/ahci.c | 2 +-
drivers/base/sys.c | 3 +++
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 8e13fd9..e214467 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -22,6 +22,7 @@ #include <linux/string.h>
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/mutex.h>
+#include <linux/hardirq.h>
#include "base.h"
@@ -367,6 +368,7 @@ int sysdev_suspend(pm_message_t state)
/* Call auxillary drivers first */
list_for_each_entry(drv, &cls->drivers, entry) {
if (drv->suspend) {
+ WARN_ON(!irqs_disabled());
ret = drv->suspend(sysdev, state);
if (ret)
goto aux_driver;
@@ -442,6 +444,7 @@ int sysdev_resume(void)
list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) {
pr_debug(" %s\n", kobject_name(&sysdev->kobj));
+ WARN_ON(!irqs_disabled());
__sysdev_resume(sysdev);
}
}
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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