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* [PATCH 1/6] iio: adc: ad7266: Don't set error code to st->vref_uv
@ 2012-12-14  7:47 Axel Lin
  2012-12-14  7:48 ` [PATCH 2/6] iio: dac: ad5380: Don't set error code to st->vref Axel Lin
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: Axel Lin @ 2012-12-14  7:47 UTC (permalink / raw)
  To: Jonathan Cameron; +Cc: Lars-Peter Clausen, linux-iio, linux-kernel

regulator_get_voltage() may return negative error code.
Add error checking to avoid setting error code to st->vref_uv.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 drivers/iio/adc/ad7266.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index a6f4fc5..e36107d 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -411,7 +411,11 @@ static int __devinit ad7266_probe(struct spi_device *spi)
 		if (ret)
 			goto error_put_reg;
 
-		st->vref_uv = regulator_get_voltage(st->reg);
+		ret = regulator_get_voltage(st->reg);
+		if (ret < 0)
+			goto error_disable_reg;
+
+		st->vref_uv = ret;
 	} else {
 		/* Use internal reference */
 		st->vref_uv = 2500000;
-- 
1.7.9.5




^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2012-12-14  9:57 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-12-14  7:47 [PATCH 1/6] iio: adc: ad7266: Don't set error code to st->vref_uv Axel Lin
2012-12-14  7:48 ` [PATCH 2/6] iio: dac: ad5380: Don't set error code to st->vref Axel Lin
2012-12-14  7:51 ` [PATCH 3/6] iio: dac: ad5504: Don't set error code to voltage_uv Axel Lin
2012-12-14  7:52 ` [PATCH 4/6] iio: dac: ad5624r_spi: " Axel Lin
2012-12-14  7:54 ` [PATCH 5/6] iio: dac: ad5686: " Axel Lin
2012-12-14  7:55 ` [PATCH 6/6] iio: dac: ad5791: Don't set error code to [pos|neg]_voltage_uv Axel Lin
2012-12-14  9:56 ` [PATCH 1/6] iio: adc: ad7266: Don't set error code to st->vref_uv Lars-Peter Clausen

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