From 405570b4a5c9402f66843be832e44c2ffd70aa01 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 9 Jun 2017 15:08:10 +0300 Subject: [PATCH] iio: adc: ad7791: Use sysfs_match_string() helper Use sysfs_match_string() helper instead of open coded variant. Cc: Lars-Peter Clausen Cc: Michael Hennerich Cc: Jonathan Cameron Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7791.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c index 1817ebf..34e353c 100644 --- a/drivers/iio/adc/ad7791.c +++ b/drivers/iio/adc/ad7791.c @@ -272,11 +272,9 @@ static ssize_t ad7791_write_frequency(struct device *dev, struct ad7791_state *st = iio_priv(indio_dev); int i, ret; - for (i = 0; i < ARRAY_SIZE(ad7791_sample_freq_avail); i++) - if (sysfs_streq(ad7791_sample_freq_avail[i], buf)) - break; - if (i == ARRAY_SIZE(ad7791_sample_freq_avail)) - return -EINVAL; + i = sysfs_match_string(ad7791_sample_freq_avail, buf); + if (i < 0) + return i; ret = iio_device_claim_direct_mode(indio_dev); if (ret) -- 2.7.4