iwinfo: include ht_operation data only if available

Check if ht_operation data are present and add them accordingly.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/iwinfo.c b/iwinfo.c
index 7c9a656..63ff2a1 100644
--- a/iwinfo.c
+++ b/iwinfo.c
@@ -455,11 +455,13 @@ rpc_iwinfo_scan(struct ubus_context *ctx, struct ubus_object *obj,
 			blobmsg_add_u32(&buf, "quality", e->quality);
 			blobmsg_add_u32(&buf, "quality_max", e->quality_max);
 
-			t = blobmsg_open_table(&buf, "ht_operation");
-			blobmsg_add_u32(&buf, "primary_channel", e->ht_chan_info.primary_chan);
-			blobmsg_add_string(&buf, "secondary_channel_offset", ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
-			blobmsg_add_u32(&buf, "channel_width", ht_chan_width[e->ht_chan_info.chan_width]);
-			blobmsg_close_table(&buf, t);
+			if (e->ht_chan_info.primary_chan) {
+				t = blobmsg_open_table(&buf, "ht_operation");
+				blobmsg_add_u32(&buf, "primary_channel", e->ht_chan_info.primary_chan);
+				blobmsg_add_string(&buf, "secondary_channel_offset", ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
+				blobmsg_add_u32(&buf, "channel_width", ht_chan_width[e->ht_chan_info.chan_width]);
+				blobmsg_close_table(&buf, t);
+			}
 
 			if (e->vht_chan_info.center_chan_1) {
 				t = blobmsg_open_table(&buf, "vht_operation");