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iio: generic_buffer: Fix --trigger-num option

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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>
This commit is contained in:
Crestez Dan Leonard 2016-06-03 21:56:29 +03:00 committed by Jonathan Cameron
parent b9155073ff
commit deb4d1fdcb
1 changed files with 2 additions and 2 deletions
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4
tools/iio/iio_generic_buffer.c
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@ -341,7 +341,7 @@ int main(int argc, char **argv)
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 @@ int main(int argc, char **argv)
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) {