Alan Stern ccf5b801ce
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 >
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