iio: Fix IIO_VAL_FRACTIONAL_LOG2 newline termination

Currently two newline characters are appended at the end of IIO_VAL_FRACTIONAL_LOG2 values when preparing them for displaying in sysfs. One is added in __iio_format_value() the other in iio_format_value(). This is unintended behavior and can confuse userspace tools. Remove the newline that is added in __iio_format_value(). Fixes: 4320b09 ("iio:core: add a callback to allow drivers to provide _available attributes") Signed-off-by: Lars-Peter Clausen <[email protected]>
analogdevicesinc · Feb 28, 2018 · b58e9ef · b58e9ef
1 parent e0aca09
commit b58e9ef
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
@@ -621,9 +621,9 @@ static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type,
 		tmp1 = vals[1];
 		tmp0 = div_s64_rem(stmp, 1000000000LL, &tmp1);
 		if (vals[1] < 0)
-			return snprintf(buf, len, "-%d.%09u\n", abs(tmp0), -tmp1);
+			return snprintf(buf, len, "-%d.%09u", abs(tmp0), -tmp1);
 		else
-			return snprintf(buf, len,  "%d.%09u\n", tmp0, tmp1);
+			return snprintf(buf, len,  "%d.%09u", tmp0, tmp1);
 	case IIO_VAL_INT_MULTIPLE:
 	{
 		int i;