On 2013-12-09 18:32, H Hartley Sweeten wrote:
As pointed out by the kbuild test robot, and Ian Abbott, the dma >= 0 test is always true because dma is unsigned. This generates a warn message:drivers/staging/comedi/drivers/ni_at_a2150.c:715 a2150_attach() warn: always true condition '(dma >= 0) => (0-u32max >= 0)' Fix the test as suggested by Ian Abbott. Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com> Reported-by: kbuild test robot <fengguang...@intel.com> Cc: Ian Abbott <abbo...@mev.co.uk> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/staging/comedi/drivers/ni_at_a2150.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index 0876bc5..0c71fdf 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -712,7 +712,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it) } } - if (dev->irq && ((dma >= 0 && dma <= 4) || (dma >= 5 && dma <= 7))) { + if (dev->irq && dma <= 7 && dma != 4) { ret = request_dma(dma, dev->board_name); if (ret == 0) { devpriv->dma = dma;
Reviewed-by: Ian Abbott <abbo...@mev.co.uk> -- -=( Ian Abbott @ MEV Ltd. E-mail: <abbo...@mev.co.uk> )=- -=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=- _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
