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Message-ID: <1355486789.3475.1.camel@phoenix> Date: Fri, 14 Dec 2012 20:06:29 +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 3/6] iio: dac: ad5504: 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> --- v2: check if ret is negative value drivers/iio/dac/ad5504.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c index 242bdc7..1e9a1f4 100644 --- a/drivers/iio/dac/ad5504.c +++ b/drivers/iio/dac/ad5504.c @@ -296,7 +296,11 @@ static int __devinit ad5504_probe(struct spi_device *spi) 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; } spi_set_drvdata(spi, indio_dev); -- 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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