fix radio lookup in agent from 'band'

src/cntlr_commands_impl.c

@@ -216,22 +216,32 @@ int COMMAND(scan)(void *priv, void *args, void *out)
 	if (tb[SCAN_ATTR_BAND]) {
 		int band = blobmsg_get_u32(tb[SCAN_ATTR_BAND]);
 		struct netif_radio *r;
+		bool found = false;
 
 		if (band != 2 && band != 5 && band != 6)
 			return -EINVAL;
 
 		list_for_each_entry(r, &n->radiolist, list) {
-			if (band == 2 && r->radio_el->band == BAND_2)
+			dbg("%s: r->radio_el->macaddr = " MACFMT ", band = %d\n", __func__,
+			    MAC2STR(r->radio_el->macaddr), r->radio_el->band);
+
+			if (band == 2 && r->radio_el->band == BAND_2) {
 				memcpy(sreq.radios[0].radio_mac, r->radio_el->macaddr, 6);
-			else if (band == 5 && r->radio_el->band == BAND_5)
+				found = true;
+			} else if (band == 5 && r->radio_el->band == BAND_5) {
 				memcpy(sreq.radios[0].radio_mac, r->radio_el->macaddr, 6);
-			else if (band == 6 && r->radio_el->band == BAND_6)
+				found = true;
+			} else if (band == 6 && r->radio_el->band == BAND_6) {
 				memcpy(sreq.radios[0].radio_mac, r->radio_el->macaddr, 6);
-			else {
+				found = true;
+			}
+		}
+
+		if (!found) {
 			dbg("radio for band %d not found in Agent\n", band);
 				return -EINVAL;
 		}
-		}
+
 		sreq.num_radio = 1;
 
 	} else if (tb[SCAN_ATTR_RADIO]) {
@@ -372,6 +382,7 @@ int COMMAND(scanresults)(void *priv, void *args, void *out)
 			blobmsg_for_each_attr(cur, tb[SCANRESULTS_ATTR_BAND], rem) {
 				int band = blobmsg_get_u32(cur);
 				struct netif_radio *r;
+				bool found = false;
 				int k = 0;
 
 				if (band != 2 && band != 5 && band != 6)
@@ -383,11 +394,14 @@ int COMMAND(scanresults)(void *priv, void *args, void *out)
 					    (band == 6 && r->radio_el->band == BAND_6)) {
 
 						memcpy(radios[k++], r->radio_el->macaddr, 6);
-					} else {
+						found = true;
+					}
+				}
+
+				if (!found) {
 					dbg("radio for band %d not found in Agent\n", band);
 						return -EINVAL;
 				}
-				}
 
 				if (k == MAX_NUM_RADIO)
 					break;