diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c
index c627d72f7fe2..9cdfbeae3ed5 100644
--- a/sound/core/seq/seq_ump_client.c
+++ b/sound/core/seq/seq_ump_client.c
@@ -28,6 +28,7 @@ struct seq_ump_group {
 	int group;			/* group index (0-based) */
 	unsigned int dir_bits;		/* directions */
 	bool active;			/* activeness */
+	bool valid;			/* valid group (referred by blocks) */
 	char name[64];			/* seq port name */
 };
 
@@ -210,6 +211,13 @@ static void fill_port_info(struct snd_seq_port_info *port,
 		sprintf(port->name, "Group %d", group->group + 1);
 }
 
+/* skip non-existing group for static blocks */
+static bool skip_group(struct seq_ump_client *client, struct seq_ump_group *group)
+{
+	return !group->valid &&
+		(client->ump->info.flags & SNDRV_UMP_EP_INFO_STATIC_BLOCKS);
+}
+
 /* create a new sequencer port per UMP group */
 static int seq_ump_group_init(struct seq_ump_client *client, int group_index)
 {
@@ -217,6 +225,9 @@ static int seq_ump_group_init(struct seq_ump_client *client, int group_index)
 	struct snd_seq_port_info *port __free(kfree) = NULL;
 	struct snd_seq_port_callback pcallbacks;
 
+	if (skip_group(client, group))
+		return 0;
+
 	port = kzalloc(sizeof(*port), GFP_KERNEL);
 	if (!port)
 		return -ENOMEM;
@@ -250,6 +261,9 @@ static void update_port_infos(struct seq_ump_client *client)
 		return;
 
 	for (i = 0; i < SNDRV_UMP_MAX_GROUPS; i++) {
+		if (skip_group(client, &client->groups[i]))
+			continue;
+
 		old->addr.client = client->seq_client;
 		old->addr.port = i;
 		err = snd_seq_kernel_client_ctl(client->seq_client,
@@ -284,6 +298,7 @@ static void update_group_attrs(struct seq_ump_client *client)
 		group->dir_bits = 0;
 		group->active = 0;
 		group->group = i;
+		group->valid = false;
 	}
 
 	list_for_each_entry(fb, &client->ump->block_list, list) {
@@ -291,6 +306,7 @@ static void update_group_attrs(struct seq_ump_client *client)
 			break;
 		group = &client->groups[fb->info.first_group];
 		for (i = 0; i < fb->info.num_groups; i++, group++) {
+			group->valid = true;
 			if (fb->info.active)
 				group->active = 1;
 			switch (fb->info.direction) {