linux-kernel - [PATCH] iio-light: Use a signed return type for ltr501_match_samp

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Date:	Sat, 19 Dec 2015 14:23:25 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	linux-iio@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald <pmeerw@...erw.net>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] iio-light: Use a signed return type for
 ltr501_match_samp_freq()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 19 Dec 2015 14:14:54 +0100

The return type "unsigned int" was used by the ltr501_match_samp_freq()
function despite of the aspect that it will eventually return a negative
error code.
Improve this implementation detail by deletion of the type modifier then.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/iio/light/ltr501.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 809a961..6bf89d8 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -180,7 +180,7 @@ static const struct ltr501_samp_table ltr501_ps_samp_table[] = {
 			{500000, 2000000}
 };
 
-static unsigned int ltr501_match_samp_freq(const struct ltr501_samp_table *tab,
+static int ltr501_match_samp_freq(const struct ltr501_samp_table *tab,
 					   int len, int val, int val2)
 {
 	int i, freq;
-- 
2.6.3

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