On 2014-09-09 00:18, H Hartley Sweeten wrote:
In order for DMA to work we also need an interrupt. Refactor the code so that the DMA allocation is only done if the interrupt is available.Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com> Cc: Ian Abbott <abbo...@mev.co.uk> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/staging/comedi/drivers/adl_pci9118.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c index 7a55c9c..f924ad9 100644 --- a/drivers/staging/comedi/drivers/adl_pci9118.c +++ b/drivers/staging/comedi/drivers/adl_pci9118.c @@ -1775,8 +1775,16 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq, pci9118_reset(dev); - if (master) - pci9118_alloc_dma(dev); + if (!disable_irq && pcidev->irq) { + ret = request_irq(pcidev->irq, pci9118_interrupt, IRQF_SHARED, + dev->board_name, dev); + if (ret == 0) { + dev->irq = pcidev->irq; + + if (master) + pci9118_alloc_dma(dev); + } + }
Are we missing a patch series? I can't see when pci9118_alloc_dma() was introduced in previous patch series.
-- -=( 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
