From 4db9bf548bb00d84ba7dfd70f124de16386c0c55 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Jul 2016 11:04:18 +0200 Subject: spi: xilinx: Handle errors from platform_get_irq() 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 Acked-by: Ricardo Ribalda Delgado Signed-off-by: Mark Brown --- drivers/spi/spi-xilinx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 3009121173cd..e62eb9ace825 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -455,7 +455,10 @@ 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) { + if (xspi->irq < 0 && xspi->irq != -ENXIO) { + ret = xspi->irq; + goto put_master; + } else if (xspi->irq >= 0) { /* Register for SPI Interrupt */ ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0, dev_name(&pdev->dev), xspi); -- cgit