From: Sebastian Ott <sebott@linux.vnet.ibm.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-pm@lists.linux-foundation.org
Subject: [PATCH] pm: clear -EAGAIN in dpm_prepare
Date: Tue, 30 Jun 2009 16:50:47 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.2.00.0906301647520.3286@localhost.localdomain> (raw)
pm: clear -EAGAIN in dpm_prepare
When the last device in the dpm list is unregistered directly after its
prepare() callback returned with -EAGAIN, the return code is passed to
the calling function, resulting in a resume failure. Prevent this by
clearing the return code after -EAGAIN.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
---
drivers/base/power/main.c | 1 +
1 file changed, 1 insertion(+)
Index: git.linux-2.6/drivers/base/power/main.c
===================================================================
--- git.linux-2.6.orig/drivers/base/power/main.c 2009-06-30 12:27:33.000000000 +0200
+++ git.linux-2.6/drivers/base/power/main.c 2009-06-30 12:38:26.000000000 +0200
@@ -762,6 +762,7 @@ static int dpm_prepare(pm_message_t stat
dev->power.status = DPM_ON;
if (error == -EAGAIN) {
put_device(dev);
+ error = 0;
continue;
}
printk(KERN_ERR "PM: Failed to prepare device %s "
next reply other threads:[~2009-06-30 14:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-30 14:50 Sebastian Ott [this message]
2009-07-04 23:47 ` [PATCH] pm: clear -EAGAIN in dpm_prepare Rafael J. Wysocki
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