linux-kernel - [PATCH] spi: stm32-qspi: manage the get

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Date:   Wed, 24 Apr 2019 17:19:00 +0200
From:   Fabien Dessenne <fabien.dessenne@...com>
To:     Mark Brown <broonie@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Ludovic Barre <ludovic.barre@...com>,
        Christophe KERELLO <christophe.kerello@...com>,
        <linux-spi@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Fabien Dessenne <fabien.dessenne@...com>
Subject: [PATCH] spi: stm32-qspi: manage the get_irq error case

During probe, check the "get_irq" error value.

Signed-off-by: Fabien Dessenne <fabien.dessenne@...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) {
-- 
2.7.4