iio: generic_buffer: Fix --trigger-num option
Initialize trig_num to -1 and handle trig_num=0 as a valid id.
Fixes: 7c7e9dad (iio: iio_generic_buffer: Add --trigger-num option)
Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c
index e8c3052..0e8a1f7 100644
--- a/tools/iio/iio_generic_buffer.c
+++ b/tools/iio/iio_generic_buffer.c
@@ -341,7 +341,7 @@
char *data = NULL;
ssize_t read_size;
- int dev_num = -1, trig_num;
+ int dev_num = -1, trig_num = -1;
char *buffer_access = NULL;
int scan_size;
int noevents = 0;
@@ -456,7 +456,7 @@
if (notrigger) {
printf("trigger-less mode selected\n");
- } if (trig_num > 0) {
+ } if (trig_num >= 0) {
char *trig_dev_name;
ret = asprintf(&trig_dev_name, "%strigger%d", iio_dir, trig_num);
if (ret < 0) {