dsp: lsm: Initialize lock and condition before apr_register

While allocating lsm client, lock and conditions are initialized
after registering session with APR. There is a possibility of
accessing uninitialized condition from q6lsm_callback when SSR
is triggerred after the port specific apr is registered.

Initialized lock, condition and state before registering session
with APR to avoid invalid access.

CRs-Fixed: 2230065
Change-Id: I48b6eb7670863c45b0539155592ea0b0a3c1bffc
Signed-off-by: pavanc <[email protected]>

dsp/q6lsm.c

@@ -311,6 +311,11 @@ struct lsm_client *q6lsm_client_alloc(lsm_app_cb cb, void *priv)
 		kfree(client);
 		return NULL;
 	}
+
+	init_waitqueue_head(&client->cmd_wait);
+	mutex_init(&client->cmd_lock);
+	atomic_set(&client->cmd_state, CMD_STATE_CLEARED);
+
 	pr_debug("%s: Client Session %d\n", __func__, client->session);
 	client->apr = apr_register("ADSP", "LSM", q6lsm_callback,
 				   ((client->session) << 8 | client->session),
@@ -328,9 +333,6 @@ struct lsm_client *q6lsm_client_alloc(lsm_app_cb cb, void *priv)
 		goto fail;
 	}
 
-	init_waitqueue_head(&client->cmd_wait);
-	mutex_init(&client->cmd_lock);
-	atomic_set(&client->cmd_state, CMD_STATE_CLEARED);
 	pr_debug("%s: New client allocated\n", __func__);
 	return client;
 fail: