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Subject: Re: [PATCH] mtd: rawnand: stm32_fmc2: manage the get_irq error case
To:     Fabien Dessenne <fabien.dessenne@st.com>,
        Boris Brezillon <bbrezillon@kernel.org>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        David Woodhouse <dwmw2@infradead.org>,
        Brian Norris <computersforpeace@gmail.com>,
        Marek Vasut <marek.vasut@gmail.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@st.com>,
        <linux-mtd@lists.infradead.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>
References: <1556117346-5608-1-git-send-email-fabien.dessenne@st.com>
From:   Christophe Kerello <christophe.kerello@st.com>
Message-ID: <1812f1d3-da71-4c62-d289-e08d742c2932@st.com>
Date:   Thu, 25 Apr 2019 09:58:26 +0200
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On 4/24/19 4:49 PM, Fabien Dessenne wrote:
> During probe, check the "get_irq" error value.
> 
> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>

Acked-by: Christophe Kerello <christophe.kerello@st.com>

> ---
>   drivers/mtd/nand/raw/stm32_fmc2_nand.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> index 999ca6a..4aabea2 100644
> --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> @@ -1909,6 +1909,12 @@ static int stm32_fmc2_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_fmc2_irq, 0,
>   			       dev_name(dev), fmc2);
>   	if (ret) {
>