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USB: use the device lock for persist_enabled

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This patch (as1325) changes the locking for the persist_enabled flag
in struct usb_device.  Now it is protected by the device lock, along
with all its neighboring bit flags, instead of the PM lock (which is
about to vanish anyway).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern 2010-01-08 12:56:42 -05:00 committed by Greg Kroah-Hartman
parent 0534d46848
commit 0c4db6df91
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/core/sysfs.c
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@ -256,9 +256,10 @@ set_persist(struct device *dev, struct device_attribute *attr,
if (sscanf(buf, "%d", &value) != 1)
return -EINVAL;
usb_pm_lock(udev);
usb_lock_device(udev);
udev->persist_enabled = !!value;
usb_pm_unlock(udev);
usb_unlock_device(udev);
return count;
}