linux-kernel - [PATCH] spi_imx.c: correct the test on platform_get

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Date:	Fri,  7 Jan 2011 15:26:01 +0100
From:	Richard Genoud <richard.genoud@...il.com>
To:	Grant Likely <grant.likely@...retlab.ca>,
	spi-devel-general@...ts.sourceforge.net
Cc:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>, linux-kernel@...r.kernel.org,
	Richard Genoud <richard.genoud@...il.com>
Subject: [PATCH] spi_imx.c: correct the test on platform_get_irq() return value

The test "if (spi_imx->irq <= 0)" is not testing the IRQ value, but the return value of platform_get_irq().
As platform_get_irq() can return an error (-ENXIO) or the IRQ value it found, the test should be "if (spi_imx->irq < 0)"

Signed-off-by: Richard Genoud <richard.genoud@...il.com>
---
 drivers/spi/spi_imx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 55a38e2..793ae99 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -847,7 +847,7 @@ static int __devinit spi_imx_probe(struct platform_device *pdev)
 	}
 
 	spi_imx->irq = platform_get_irq(pdev, 0);
-	if (spi_imx->irq <= 0) {
+	if (spi_imx->irq < 0) {
 		ret = -EINVAL;
 		goto out_iounmap;
 	}
-- 
1.7.1

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