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w1: omap-hdq: fix error return code in omap_hdq_probe() 

platform_get_irq() returns an error code, but the omap_hdq
driver ignores it and always returns -ENXIO. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error.

Print error message and propagate the return value of
platform_get_irq on failure.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo A. R. Silva 2017-06-30 17:44:02 -05:00 committed by Greg Kroah-Hartman
parent cc84b824e4
commit c89876dda0
1 changed files with 2 additions and 1 deletions
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3
drivers/w1/masters/omap_hdq.c
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@ -704,7 +704,8 @@ static int omap_hdq_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = -ENXIO;
dev_dbg(&pdev->dev, "Failed to get IRQ: %d\n", irq);
ret = irq;
goto err_irq;
}