From: H Hartley Sweeten Date: Wed, 12 Aug 2015 20:25:36 +0000 (-0700) Subject: staging: comedi: hwdrv_apci3501: remove useless read/mask to stop watchdog X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a66f2017ec2daebfef9e7cdf4edeca7a362c7303;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git staging: comedi: hwdrv_apci3501: remove useless read/mask to stop watchdog The watchdog is stopped in apci3501_write_insn_timer() by writing a 0 to the timer control register. There is no need to read the register first and mask it (as done when the timer is used as a timer). Reported-by: coverity (CID 1227052) Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c index 1f2f78186d58..e12b2bc61ca3 100644 --- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c +++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c @@ -102,8 +102,6 @@ static int apci3501_write_insn_timer(struct comedi_device *dev, /* Enable the Watchdog */ outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG); } else if (data[1] == 0) { /* Stop The Watchdog */ - ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG); - ul_Command1 = ul_Command1 & 0xFFFFF9FEUL; outl(0x0, dev->iobase + APCI3501_TIMER_CTRL_REG); } else if (data[1] == 2) { ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);