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| author | Richard Genoud <richard.genoud@gmail.com> | 2011-01-07 17:26:01 +0300 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-01-07 20:01:23 +0300 |
| commit | 735759389b7143f95ae7badc97511e7e4729e873 (patch) | |
| tree | 48481675a7d52ce1a1af6bbf6c47fa6095b5a54d | |
| parent | 77e58efd134b553d723fd963f436920a6aaaa6df (diff) | |
| download | linux-735759389b7143f95ae7badc97511e7e4729e873.tar.xz | |
spi/imx: 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)"
[grant.likely: Note: In general, Linux irq number 0 should also mean
no irq, but arm still allows devices to be assigned 0, and the imx
platform uses 0 for one of the spi devices, so this patch is needed
for the device to work]
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| -rw-r--r-- | 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 9010ef0385a8..9469564e6888 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -821,7 +821,7 @@ 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; } |