Commit d015f3ec authored by Matthijs van Duin's avatar Matthijs van Duin Committed by H. Nikolaus Schaller
Browse files

f_mass_storage: fix potentially unsafe thread wakeup 

Signalling from interrupt to thread using a variable should always
either mark that variable 'volatile' or use a suitable barrier.
parent c4f5c41a

drivers/usb/gadget/f_mass_storage.c

+1 −1
Changes for drivers/usb/gadget/f_mass_storage.c: 1 added line, 1 removed line.
Original line number Diff line number Diff line
@@ -344,7 +344,7 @@ struct fsg_common { 
	unsigned int		bad_lun_okay:1;

	unsigned int		running:1;



	int			thread_wakeup_needed;

	int volatile		thread_wakeup_needed;

	struct completion	thread_notifier;

	struct task_struct	*thread_task;