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authorDaniel Drake <dsd@gentoo.org>2007-11-21 17:55:18 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2007-11-28 16:53:53 -0500
commitdec13c15445fec29ca9087890895718450e80b95 (patch)
treecac4cfb2d665344973cb4d953d3d7785ae612a0d /drivers/base/power/power.h
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/power.h')
-rw-r--r--drivers/base/power/power.h28
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);
13 13
14extern struct list_head dpm_active; /* The active device list */ 14extern struct list_head dpm_active; /* The active device list */
15 15
16static inline struct device * to_device(struct list_head * entry) 16static inline struct device *to_device(struct list_head *entry)
17{ 17{
18 return container_of(entry, struct device, power.entry); 18 return container_of(entry, struct device, power.entry);
19} 19}
20 20
21extern int device_pm_add(struct device *); 21extern void device_pm_add(struct device *);
22extern void device_pm_remove(struct device *); 22extern void device_pm_remove(struct device *);
23 23
24#else /* CONFIG_PM_SLEEP */
25
26
27static inline void device_pm_add(struct device *dev)
28{
29}
30
31static inline void device_pm_remove(struct device *dev)
32{
33}
34
35#endif
36
37#ifdef CONFIG_PM
38
24/* 39/*
25 * sysfs.c 40 * sysfs.c
26 */ 41 */
@@ -28,16 +43,15 @@ extern void device_pm_remove(struct device *);
28extern int dpm_sysfs_add(struct device *); 43extern int dpm_sysfs_add(struct device *);
29extern void dpm_sysfs_remove(struct device *); 44extern void dpm_sysfs_remove(struct device *);
30 45
31#else /* CONFIG_PM_SLEEP */ 46#else /* CONFIG_PM */
32
33 47
34static inline int device_pm_add(struct device * dev) 48static inline int dpm_sysfs_add(struct device *dev)
35{ 49{
36 return 0; 50 return 0;
37} 51}
38static inline void device_pm_remove(struct device * dev)
39{
40 52
53static inline void dpm_sysfs_remove(struct device *dev)
54{
41} 55}
42 56
43#endif 57#endif