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staging:iio:dac:ad5504: Check if IRQ was requested before freeing it

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IRQ support is optional, so we have to check whether it was actually requested
before we attempt to free it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lars-Peter Clausen 2012-06-04 11:36:25 +02:00 • committed by Greg Kroah-Hartman
parent 4468cb5525
commit 4f0a788dc8
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/iio/dac/ad5504.c
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@ -294,7 +294,8 @@ static int __devinit ad5504_probe(struct spi_device *spi)
return 0;
error_free_irq:
free_irq(spi->irq, indio_dev);
if (spi->irq)
free_irq(spi->irq, indio_dev);
error_disable_reg:
if (!IS_ERR(reg))
regulator_disable(reg);