diff options
| author | Daniel Drake <dsd@gentoo.org> | 2007-11-21 14:55:18 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-11-28 13:53:53 -0800 |
| commit | dec13c15445fec29ca9087890895718450e80b95 (patch) | |
| tree | cac4cfb2d665344973cb4d953d3d7785ae612a0d /drivers/base/power/power.h | |
| parent | 345ee8392dc149ca529f80e40583928977ad592e (diff) | |
| download | linux-dec13c15445fec29ca9087890895718450e80b95.tar.bz2 | |
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/power.h')
| -rw-r--r-- | drivers/base/power/power.h | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index 5c4efd493fa5..379da4e958e0 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -13,14 +13,29 @@ extern void device_shutdown(void); extern struct list_head dpm_active; /* The active device list */ -static inline struct device * to_device(struct list_head * entry) +static inline struct device *to_device(struct list_head *entry) { return container_of(entry, struct device, power.entry); } -extern int device_pm_add(struct device *); +extern void device_pm_add(struct device *); extern void device_pm_remove(struct device *); +#else /* CONFIG_PM_SLEEP */ + + +static inline void device_pm_add(struct device *dev) +{ +} + +static inline void device_pm_remove(struct device *dev) +{ +} + +#endif + +#ifdef CONFIG_PM + /* * sysfs.c */ @@ -28,16 +43,15 @@ extern void device_pm_remove(struct device *); extern int dpm_sysfs_add(struct device *); extern void dpm_sysfs_remove(struct device *); -#else /* CONFIG_PM_SLEEP */ - +#else /* CONFIG_PM */ -static inline int device_pm_add(struct device * dev) +static inline int dpm_sysfs_add(struct device *dev) { return 0; } -static inline void device_pm_remove(struct device * dev) -{ +static inline void dpm_sysfs_remove(struct device *dev) +{ } #endif |