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-rw-r--r--binding/iiodevices-binding.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/binding/iiodevices-binding.c b/binding/iiodevices-binding.c
index affd4b9..9b4b60d 100644
--- a/binding/iiodevices-binding.c
+++ b/binding/iiodevices-binding.c
@@ -162,7 +162,7 @@ static void init_dev(struct client_sub *client)
static int read_infos(struct client_sub* client)
{
if(!client || !client->channels || !client->channels->chn) {
- AFB_ERROR("client=%p or client->channels=%p or client->channels->chn=%p is null", client, client->channels, client->channels->chn);
+ AFB_ERROR("client or client->channels or client->channels->chn is null");
return -1;
}
json_object *jobject = NULL;
@@ -369,6 +369,10 @@ static void init_event_io(struct client_sub *client)
AFB_ERROR("client is null");
return;
}
+ if(!client->channels) {
+ AFB_ERROR("channel is null");
+ return;
+ }
read_infos(client); //get unchanged infos
sd_event_source *source = NULL;
if(client->u_period <= 0) { //no given frequency
@@ -409,7 +413,9 @@ static struct channels* set_channel(
if(!(chn->chn = iio_device_find_channel(client->dev, chn->name, false))) {
AFB_ERROR("cannot find %s channel", chn->name);
- return NULL;
+ free(chn);
+ prev_chn->next = NULL;
+ return prev_chn;
}
iio_channel_enable(chn->chn);
return chn;
@@ -530,13 +536,26 @@ static void subscribe(struct afb_req request)
uint64_t u_period = get_period(freq);
enum iio_elements iioelts = (int)treat_iio_elts(s_iioelts);
+ if(iioelts == 0){
+ afb_req_fail(request, "failed", "wrong args");
+ return;
+ }
struct client_sub* client = is_new_client_sub_needed(&iio_infos[i],
u_period, &iioelts);
if(!client || iioelts > 0) { //no client found or new channels
if(!client)
client = add_new_client(&iio_infos[i], iioelts, u_period);
init_dev(client);
+ if(!client->dev) {
+ deinit_client_sub(client);
+ afb_req_fail_f(request, "failed", "No %s device found", client->infos->dev_name);
+ return;
+ }
init_channel(client, iioelts);
+ if(!client->channels) {
+ afb_req_fail(request, "failed", "No channels found");
+ return;
+ }
init_event_io(client);
}
//stored client in order to be get in unsubscription