[Linux-stm32] [PATCH] spi: stm32-qspi: manage the get_irq error case

[Ludovic BARRE]

On 4/24/19 5:19 PM, Fabien Dessenne wrote:
> During probe, check the "get_irq" error value.
> 
> Signed-off-by: Fabien Dessenne <fabien.dessenne at st.com>

Acked-by: Ludovic Barre <ludovic.barre at st.com>

> ---
>   drivers/spi/spi-stm32-qspi.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c
> index 11a89aa..42f8e3c 100644
> --- a/drivers/spi/spi-stm32-qspi.c
> +++ b/drivers/spi/spi-stm32-qspi.c
> @@ -574,6 +574,12 @@ static int stm32_qspi_probe(struct platform_device *pdev)
>   	}
>   
>   	irq = platform_get_irq(pdev, 0);
> +	if (irq < 0) {
> +		if (irq != -EPROBE_DEFER)
> +			dev_err(dev, "IRQ error missing or invalid\n");
> +		return irq;
> +	}
> +
>   	ret = devm_request_irq(dev, irq, stm32_qspi_irq, 0,
>   			       dev_name(dev), qspi);
>   	if (ret) {
>