Commits
Ian Abbott committed ee4063fa6bd
Staging: comedi: amplc_dio200: Protect counter subdevice with spinlock The internal state of an 82C54 counter timer chip will get messed up if several threads read, write, configure, or check the status of the chip simultaneously. Protect the register access sequences with a spin lock. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>