From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lars-Peter Clausen Subject: [PATCH 1/2] spi: xilinx: Handle errors from platform_get_irq() Date: Tue, 12 Jul 2016 15:24:40 +0200 Message-ID: <1468329881-5894-1-git-send-email-lars@metafoo.de> Cc: Michal Simek , =?UTF-8?q?S=C3=B6ren=20Brinkmann?= , Ricardo Ribalda Delgado , linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Lars-Peter Clausen To: Mark Brown Return-path: Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: The Xilinx SPI driver can operate without an IRQ, but not every error returned by platform_get_irq() means that no IRQ was specified. It will also return an error if the IRQ specification is invalid or the IRQ provider is not yet available (EPROBE_DEFER). So instead of ignoring all errors only ignore ENXIO, which means no IRQ was specified, and propagate all other errors to device driver core. Signed-off-by: Lars-Peter Clausen --- drivers/spi/spi-xilinx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 3009121..334f423 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -455,6 +455,9 @@ static int xilinx_spi_probe(struct platform_device *pdev) xspi->buffer_size = xilinx_spi_find_buffer_size(xspi); xspi->irq = platform_get_irq(pdev, 0); + if (xspi->irq < 0 && xspi->irq != -ENXIO) + return xspi->irq; + if (xspi->irq >= 0) { /* Register for SPI Interrupt */ ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0, -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html