Commit 0c4db6df authored Jan 08, 2010 by Alan Stern Committed by Greg Kroah-Hartman Mar 02, 2010

USB: use the device lock for persist_enabled



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>

parent 0534d468

drivers/usb/core/sysfs.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}