From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 19 Dec 2015 13:14:54 +0000 (+0100)
Subject: iio-light: Use a signed return type for ltr501_match_samp_freq()
X-Git-Tag: firefly_0821_release~3308^2~92
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f865d8c326dd50649d3ee3129b93e6abb6929fae;p=firefly-linux-kernel-4.4.55.git

iio-light: Use a signed return type for ltr501_match_samp_freq()

commit c08ae18560aaed50fed306a2e11f36ce70130f65 upstream.

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@users.sourceforge.net>
Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 809a961b9a7f..6bf89d8f3741 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;