staging:iio:buffer trivial use of strtobool to remove dodgy equivalent.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/staging/iio/industrialio-buffer.c b/drivers/staging/iio/industrialio-buffer.c
index 386ba760f3f1..59b0caf5deab 100644
--- a/drivers/staging/iio/industrialio-buffer.c
+++ b/drivers/staging/iio/industrialio-buffer.c
@@ -124,13 +124,15 @@ static ssize_t iio_scan_el_store(struct device *dev,
                                  const char *buf,
                                  size_t len)
 {
-        int ret = 0;
+        int ret;
         bool state;
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         struct iio_buffer *buffer = indio_dev->buffer;
         struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 
-        state = !(buf[0] == '0');
+        ret = strtobool(buf, &state);
+        if (ret < 0)
+                return ret;
         mutex_lock(&indio_dev->mlock);
         if (iio_buffer_enabled(indio_dev)) {
                 ret = -EBUSY;
@@ -169,11 +171,14 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
                                     const char *buf,
                                     size_t len)
 {
-        int ret = 0;
+        int ret;
         struct iio_dev *indio_dev = dev_get_drvdata(dev);
         bool state;
 
-        state = !(buf[0] == '0');
+        ret = strtobool(buf, &state);
+        if (ret < 0)
+                return ret;
+
         mutex_lock(&indio_dev->mlock);
         if (iio_buffer_enabled(indio_dev)) {
                 ret = -EBUSY;