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authorDaniel Drake <dsd@gentoo.org>2007-11-21 14:55:18 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2007-11-28 13:53:53 -0800
commitdec13c15445fec29ca9087890895718450e80b95 (patch)
treecac4cfb2d665344973cb4d953d3d7785ae612a0d /drivers/base/power/main.c
parent345ee8392dc149ca529f80e40583928977ad592e (diff)
create /sys/.../power when CONFIG_PM is set
The CONFIG_SUSPEND changes in 2.6.23 caused a regression under certain configuration conditions (SUSPEND=n, USB_AUTOSUSPEND=y) where all USB device attributes in sysfs (idVendor, idProduct, ...) silently disappeared, causing udev breakage and more. The cause of this is that the /sys/.../power subdirectory is now only created when CONFIG_PM_SLEEP is set, however, it should be created whenever CONFIG_PM is set to handle the above situation. The following patch fixes the regression. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: stable <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/power/main.c')
-rw-r--r--drivers/base/power/main.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0ab4ab21f56..691ffb64cc3 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -38,20 +38,14 @@ static DEFINE_MUTEX(dpm_list_mtx);
int (*platform_enable_wakeup)(struct device *dev, int is_on);
-int device_pm_add(struct device *dev)
+void device_pm_add(struct device *dev)
{
- int error;
-
pr_debug("PM: Adding info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus",
kobject_name(&dev->kobj));
mutex_lock(&dpm_list_mtx);
list_add_tail(&dev->power.entry, &dpm_active);
- error = dpm_sysfs_add(dev);
- if (error)
- list_del(&dev->power.entry);
mutex_unlock(&dpm_list_mtx);
- return error;
}
void device_pm_remove(struct device *dev)