172 	struct mutex		io_lock;	// IO -lock  member
496 	mutex_lock(&mdc800->io_lock);  in mdc800_usb_probe()
501 		mutex_unlock(&mdc800->io_lock);  in mdc800_usb_probe()
542 	mutex_unlock(&mdc800->io_lock);  in mdc800_usb_probe()
566 		mutex_lock(&mdc800->io_lock);  in mdc800_usb_disconnect()
572 		mutex_unlock(&mdc800->io_lock);  in mdc800_usb_disconnect()
624 	mutex_lock(&mdc800->io_lock);  in mdc800_device_open()
661 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_open()
673 	mutex_lock(&mdc800->io_lock);  in mdc800_device_release()
686 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_release()
700 	mutex_lock(&mdc800->io_lock);  in mdc800_device_read()
703 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
710 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
715 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
723 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
744 					mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
757 					mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
764 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
773 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
782 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
798 	mutex_lock(&mdc800->io_lock);  in mdc800_device_write()
801 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
806 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
815 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
821 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
842 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
855 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
869 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
878 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
892 						mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
911 							mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
939 							mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
949 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
1004 	mutex_init (&mdc800->io_lock);  in usb_mdc800_init()