[PATCH] mtd: rawnand: stm32_fmc2: manage the get_irq error case

[Fabien Dessenne]

During probe, check the "get_irq" error value.

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