Bluetooth: btmrvl: fix thread stopping race
There is currently a race condition in the btmrvl_remove_card() which is causing hangs on suspend for OLPC. When the race occurs, kthread_stop() never returns. The problem is that btmrvl_service_main_thread() calls kthread_should_stop() and then does a fair number of things before restarting the loop and sleeping. If the thread gets stopped after kthread_should_stop() is checked, but before the sleep happens, the thread will go to sleep and won't necessarily be woken up. Move the kthread_should_stop() check into a race-free place. Signed-off-by: NDaniel Drake <dsd@laptop.org> Signed-off-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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