diff --git a/src/lib/parameters/flashparams/flashparams.cpp b/src/lib/parameters/flashparams/flashparams.cpp
index 3df2f71a3b..f5345a3363 100644
--- a/src/lib/parameters/flashparams/flashparams.cpp
+++ b/src/lib/parameters/flashparams/flashparams.cpp
@@ -207,7 +207,7 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 {
 	float f;
 	int32_t i;
-	void *v, *tmp = nullptr;
+	void *v = nullptr;
 	int result = -1;
 	struct param_import_state *state = (struct param_import_state *)priv;
 
@@ -260,60 +260,20 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 		v = &f;
 		break;
 
-	case BSON_BINDATA:
-		if (node->subtype != BSON_BIN_BINARY) {
-			PX4_WARN("unexpected type for %s", node->name);
-			result = 1; // just skip this entry
-			goto out;
-		}
-
-		if (bson_decoder_data_pending(decoder) != param_size(param)) {
-			PX4_WARN("bad size for '%s'", node->name);
-			result = 1; // just skip this entry
-			goto out;
-		}
-
-		/* XXX check actual file data size? */
-		tmp = malloc(param_size(param));
-
-		if (tmp == nullptr) {
-			debug("failed allocating for '%s'", node->name);
-			goto out;
-		}
-
-		if (bson_decoder_copy_data(decoder, tmp)) {
-			debug("failed copying data for '%s'", node->name);
-			goto out;
-		}
-
-		v = tmp;
-		break;
-
 	default:
 		debug("unrecognised node type");
 		goto out;
 	}
 
 	if (param_set_external(param, v, state->mark_saved, true)) {
-
 		debug("error setting value for '%s'", node->name);
 		goto out;
 	}
 
-	if (tmp != nullptr) {
-		free(tmp);
-		tmp = nullptr;
-	}
-
 	/* don't return zero, that means EOF */
 	result = 1;
 
 out:
-
-	if (tmp != nullptr) {
-		free(tmp);
-	}
-
 	return result;
 }
 
diff --git a/src/lib/parameters/parameters.cpp b/src/lib/parameters/parameters.cpp
index b016b759cc..9efa972bbd 100644
--- a/src/lib/parameters/parameters.cpp
+++ b/src/lib/parameters/parameters.cpp
@@ -1290,7 +1290,6 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 {
 	float f = 0.0f;
 	int32_t i = 0;
-	void *tmp = nullptr;
 	void *v = nullptr;
 	int result = -1;
 	param_import_state *state = (param_import_state *)priv;
@@ -1350,43 +1349,6 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 		}
 		break;
 
-	case BSON_BINDATA: {
-			if (node->subtype != BSON_BIN_BINARY) {
-				PX4_WARN("unexpected subtype for %s", node->name);
-				result = 1; // just skip this entry
-				goto out;
-			}
-
-			if (bson_decoder_data_pending(decoder) != param_size(param)) {
-				PX4_WARN("bad size for '%s'", node->name);
-				result = 1; // just skip this entry
-				goto out;
-			}
-
-			/* XXX check actual file data size? */
-			size_t psize = param_size(param);
-
-			if (psize > 0) {
-				tmp = malloc(psize);
-
-			} else {
-				tmp = nullptr;
-			}
-
-			if (tmp == nullptr) {
-				PX4_ERR("failed allocating for '%s'", node->name);
-				goto out;
-			}
-
-			if (bson_decoder_copy_data(decoder, tmp)) {
-				PX4_ERR("failed copying data for '%s'", node->name);
-				goto out;
-			}
-
-			v = tmp;
-		}
-		break;
-
 	default:
 		PX4_DEBUG("unrecognised node type");
 		goto out;
@@ -1397,20 +1359,10 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 		goto out;
 	}
 
-	if (tmp != nullptr) {
-		free(tmp);
-		tmp = nullptr;
-	}
-
 	/* don't return zero, that means EOF */
 	result = 1;
 
 out:
-
-	if (tmp != nullptr) {
-		free(tmp);
-	}
-
 	return result;
 }
 
diff --git a/src/lib/parameters/parameters_shmem.cpp b/src/lib/parameters/parameters_shmem.cpp
index c7985e2c8f..415bfd3191 100644
--- a/src/lib/parameters/parameters_shmem.cpp
+++ b/src/lib/parameters/parameters_shmem.cpp
@@ -1205,7 +1205,6 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 {
 	float f = 0.0f;
 	int32_t i = 0;
-	void *tmp = nullptr;
 	void *v = nullptr;
 	int result = -1;
 	param_import_state *state = (param_import_state *)priv;
@@ -1263,43 +1262,6 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 		}
 		break;
 
-	case BSON_BINDATA: {
-			if (node->subtype != BSON_BIN_BINARY) {
-				PX4_WARN("unexpected subtype for %s", node->name);
-				result = 1; // just skip this entry
-				goto out;
-			}
-
-			if (bson_decoder_data_pending(decoder) != param_size(param)) {
-				PX4_WARN("bad size for '%s'", node->name);
-				result = 1; // just skip this entry
-				goto out;
-			}
-
-			/* XXX check actual file data size? */
-			size_t psize = param_size(param);
-
-			if (psize > 0) {
-				tmp = malloc(psize);
-
-			} else {
-				tmp = nullptr;
-			}
-
-			if (tmp == nullptr) {
-				PX4_ERR("failed allocating for '%s'", node->name);
-				goto out;
-			}
-
-			if (bson_decoder_copy_data(decoder, tmp)) {
-				PX4_ERR("failed copying data for '%s'", node->name);
-				goto out;
-			}
-
-			v = tmp;
-		}
-		break;
-
 	default:
 		PX4_DEBUG("unrecognised node type");
 		goto out;
@@ -1310,20 +1272,10 @@ param_import_callback(bson_decoder_t decoder, void *priv, bson_node_t node)
 		goto out;
 	}
 
-	if (tmp != nullptr) {
-		free(tmp);
-		tmp = nullptr;
-	}
-
 	/* don't return zero, that means EOF */
 	result = 1;
 
 out:
-
-	if (tmp != nullptr) {
-		free(tmp);
-	}
-
 	return result;
 }