1 files changed, 5 insertions, 1 deletions

diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index ea2d0ae85bd3..6c9cba2166d9 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1259,6 +1259,7 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
         struct snd_seq_port_info *info = arg;
         struct snd_seq_client_port *port;
         struct snd_seq_port_callback *callback;
+        int port_idx;
 
         /* it is not allowed to create the port for an another client */
         if (info->addr.client != client->number)
@@ -1269,7 +1270,9 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
                 return -ENOMEM;
 
         if (client->type == USER_CLIENT && info->kernel) {
-                snd_seq_delete_port(client, port->addr.port);
+                port_idx = port->addr.port;
+                snd_seq_port_unlock(port);
+                snd_seq_delete_port(client, port_idx);
                 return -EINVAL;
         }
         if (client->type == KERNEL_CLIENT) {
@@ -1290,6 +1293,7 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
 
         snd_seq_set_port_info(port, info);
         snd_seq_system_client_ev_port_start(port->addr.client, port->addr.port);
+        snd_seq_port_unlock(port);
 
         return 0;
 }