Thread (10 messages) 10 messages, 4 authors, 2012-08-28

Re: [PATCH 6/6] drivers/iio/adc/at91_adc.c: adjust inconsistent IS_ERR and PTR_ERR

From: Jonathan Cameron <jic23@kernel.org>
Date: 2012-08-27 20:16:51
Also in: linux-iio, lkml

On 08/25/2012 08:57 PM, Julia Lawall wrote:
From: Julia Lawall <redacted>

Change the call to PTR_ERR to access the value just tested by IS_ERR.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e,e1;
@@

(
if (IS_ERR(e)) { ... PTR_ERR(e) ... }
|
if (IS_ERR(eá)) { ... PTR_ERR(e) ... }
|
*if (IS_ERR(e))
 { ...
*  PTR_ERR(e1)
   ... }
)
// </smpl>

Signed-off-by: Julia Lawall <redacted>
Thanks Julia and keep up the good work!

I've merge this one with a bit of fuzz to
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git

fixes-togreg
quoted hunk ↗ jump to hunk
---
 drivers/iio/adc/at91_adc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 98c96f9..8650281 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -604,7 +604,7 @@ static int __devinit at91_adc_probe(struct platform_device *pdev)
 	st->adc_clk = devm_clk_get(&pdev->dev, "adc_op_clk");
 	if (IS_ERR(st->adc_clk)) {
 		dev_err(&pdev->dev, "Failed to get the ADC clock.\n");
-		ret = PTR_ERR(st->clk);
+		ret = PTR_ERR(st->adc_clk);
 		goto error_disable_clk;
 	}
 

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