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Message-ID: <1355801617.11880.1.camel@phoenix> Date: Tue, 18 Dec 2012 11:33:37 +0800 From: Axel Lin <axel.lin@...ics.com> To: Jonathan Cameron <jic23@....ac.uk> Cc: Michael Hennerich <hennerich@...ckfin.uclinux.org>, linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2] iio: dac: ad5446: Don't set error code to voltage_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to voltage_uv. Signed-off-by: Axel Lin <axel.lin@...ics.com> --- Sorry. Just found I made the same mistake again. Here is v2, should check if ret is negative value. drivers/iio/dac/ad5446.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 3310cbb..607378f 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -226,7 +226,11 @@ static int __devinit ad5446_probe(struct device *dev, const char *name, if (ret) goto error_put_reg; - voltage_uv = regulator_get_voltage(reg); + ret = regulator_get_voltage(reg); + if (ret < 0) + goto error_disable_reg; + + voltage_uv = ret; } indio_dev = iio_device_alloc(sizeof(*st)); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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