Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 97b603a4 authored Dec 06, 2014 by Peter Meerwald Committed by Jonathan Cameron Jun 14, 2014

staging:iio: Fix error handling in generic_buffer example



read() does not return -EAGAIN
read() returns -1 and the errno value needs to be checked for -EAGAIN

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

parent 723db167

drivers/staging/iio/Documentation/generic_buffer.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -305,9 +305,12 @@ int main(int argc, char **argv)
		read_size = read(fp,
		data,
		toread*scan_size);
		if (read_size == -EAGAIN) {
		if (read_size < 0) {
		if (errno == -EAGAIN) {
		printf("nothing available\n");
		continue;
		} else
		break;
		}
		for (i = 0; i < read_size/scan_size; i++)
		process_scan(data + scan_size*i,