staging:iio:documentation make read_size signed to allow for errors.
Without this all hell breaks loose if you have no data.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/Documentation/generic_buffer.c b/drivers/staging/iio/Documentation/generic_buffer.c
index 3cc18ab..eb72e95 100644
--- a/drivers/staging/iio/Documentation/generic_buffer.c
+++ b/drivers/staging/iio/Documentation/generic_buffer.c
@@ -132,7 +132,7 @@
int datardytrigger = 1;
char *data;
- size_t read_size;
+ ssize_t read_size;
struct iio_event_data dat;
int dev_num, trig_num;
char *buffer_access, *buffer_event;