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* [PATCH v2 3/6] iio: dac: ad5504: Don't set error code to voltage_uv
@ 2012-12-14 12:06 Axel Lin
  2012-12-14 12:07 ` [PATCH v2 4/6] iio: dac: ad5624r_spi: " Axel Lin
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Axel Lin @ 2012-12-14 12:06 UTC (permalink / raw)
  To: Jonathan Cameron; +Cc: Michael Hennerich, linux-iio, linux-kernel

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@ingics.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




^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2012-12-16 11:09 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-12-14 12:06 [PATCH v2 3/6] iio: dac: ad5504: Don't set error code to voltage_uv Axel Lin
2012-12-14 12:07 ` [PATCH v2 4/6] iio: dac: ad5624r_spi: " Axel Lin
2012-12-14 12:08 ` [PATCH v2 5/6] iio: dac: ad5686: " Axel Lin
2012-12-16 11:09 ` [PATCH v2 3/6] iio: dac: ad5504: " Jonathan Cameron

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