From: Esben Haabendal esben@geanix.com
commit 324ac45f25e634eca6346953ae531e8da3e0c73d upstream.
Since e3a3c3a20555 ("UIO: fix uio_pdrv_genirq with device tree but no interrupt"), the uio_pdrv_genirq has supported use without interrupt, so the change in 7723f4c5ecdb ("driver core: platform: Add an error message to") added false warnings for those cases.
Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to platform_get_irq*()") Signed-off-by: Esben Haabendal esben@geanix.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200701145659.3978-2-esben@geanix.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/uio/uio_pdrv_genirq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/uio/uio_pdrv_genirq.c +++ b/drivers/uio/uio_pdrv_genirq.c @@ -159,7 +159,7 @@ static int uio_pdrv_genirq_probe(struct priv->pdev = pdev;
if (!uioinfo->irq) { - ret = platform_get_irq(pdev, 0); + ret = platform_get_irq_optional(pdev, 0); uioinfo->irq = ret; if (ret == -ENXIO && pdev->dev.of_node) uioinfo->irq = UIO_IRQ_NONE;