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Driver core: Fix device_move() vs. dpm list ordering, v2

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dpm_list currently relies on the fact that child devices will
be registered after their parents to get a correct suspend
order. Using device_move() however destroys this assumption, as
an already registered device may be moved under a newly registered
one.

This patch adds a new argument to device_move(), allowing callers
to specify how dpm_list should be adapted.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Cornelia Huck 2009-03-04 12:44:00 +01:00 • committed by Greg Kroah-Hartman
parent 60530afe1e
commit ffa6a7054d
8 changed files with 92 additions and 9 deletions
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3
include/linux/device.h
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@ -494,7 +494,8 @@ extern int device_for_each_child(struct device *dev, void *data,
extern struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
extern int device_rename(struct device *dev, char *new_name);
extern int device_move(struct device *dev, struct device *new_parent);
extern int device_move(struct device *dev, struct device *new_parent,
enum dpm_order dpm_order);
/*
* Root device objects for grouping under /sys/devices