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iio: core: Use __sysfs_match_string() helper

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Use __sysfs_match_string() helper instead of open coded variant.

Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Andy Shevchenko 2017-06-09 15:08:16 +03:00 committed by Jonathan Cameron
parent c306dbd88c
commit 02e9a0ff0d
1 changed files with 4 additions and 9 deletions
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13
drivers/iio/industrialio-core.c
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@ -478,21 +478,16 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
size_t len)
{
const struct iio_enum *e = (const struct iio_enum *)priv;
unsigned int i;
int ret;
if (!e->set)
return -EINVAL;
for (i = 0; i < e->num_items; i++) {
if (sysfs_streq(buf, e->items[i]))
break;
}
ret = __sysfs_match_string(e->items, e->num_items, buf);
if (ret < 0)
return ret;
if (i == e->num_items)
return -EINVAL;
ret = e->set(indio_dev, chan, i);
ret = e->set(indio_dev, chan, ret);
return ret ? ret : len;
}
EXPORT_SYMBOL_GPL(iio_enum_write);