The das16_ai_disable() function disables interrupts and the pacer clock. This function is called by the subdevice (*cancel) operation. The comedi core will not call a subdevice (*insn_read) operation while an async command is running due to the s->busy check in parse_insn(). Since all async commands are terminated by a (*cancel), the das16_ai_disable() is not necessary in das16_ai_insn_read(). Remove it. Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx> Cc: Ian Abbott <abbotti@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/staging/comedi/drivers/das16.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index 417ea75..97e5e7dc 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -831,8 +831,6 @@ static int das16_ai_insn_read(struct comedi_device *dev, int ret; int i; - das16_ai_disable(dev); - /* set multiplexer */ outb(chan | (chan << 4), dev->iobase + DAS16_MUX_REG); -- 2.0.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
