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

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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>
This commit is contained in:
Markus Elfring 2015-12-19 14:14:54 +01:00 committed by Greg Kroah-Hartman
parent e9b0f0e411
commit f865d8c326
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/light/ltr501.c
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@ -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;