platform_get_irq() returns an error code, but the at91rm9200 driver
ignores it and always returns -ENXIO. This is not correct and,
prevents -EPROBE_DEFER from being propagated properly.
Print and propagate the return value of platform_get_irq on failure.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
drivers/rtc/rtc-at91rm9200.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index e221b78..09bc2e0 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -398,8 +398,8 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
- dev_err(&pdev->dev, "no irq resource defined\n");
- return -ENXIO;
+ dev_err(&pdev->dev, "no irq resource defined: %d\n", irq);
+ return irq;
}
at91_rtc_regs = devm_ioremap(&pdev->dev, regs->start,
--
2.5.0
