[PATCH 5.7 191/244] uio_pdrv_genirq: Remove warning when irq is not specified

[Greg Kroah-Hartman]

From: Esben Haabendal <es...@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 <es...@geanix.com>
Cc: sta...@vger.kernel.org
Link: https://lore.kernel.org/r/20200701145659.3978-2-es...@geanix.com
Signed-off-by: Greg Kroah-Hartman <gre...@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;