USB: make intf.pm_usage an atomic_t
This patch (as1260) changes the pm_usage_cnt field in struct usb_interface from an int to an atomic_t. This is so that drivers can invoke the usb_autopm_get_interface_async() and usb_autopm_put_interface_async() routines without locking and without fear of corrupting the pm_usage_cnt value. Signed-off-by:Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
parent
7cbe5dca
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