qcacld-3.0: Add NULL check for adapter->vdev in interop_ap

In the function __wlan_cfg80211_set_interop_issues_ap_config the
adapter->vdev pointer is being passed to fetch the psoc without any
prior NULL check. This can lead to NULL pointer dereference.

Add a NULL sanity check before performing action based on adapter->vdev

CRs-Fixed: 2681524
Change-Id: I0c58a3a263fe5166e0c13a5f866f4bccfa031086

os_if/interop_issues_ap/src/wlan_cfg80211_interop_issues_ap.c

@@ -180,6 +180,11 @@ __wlan_cfg80211_set_interop_issues_ap_config(struct wiphy *wiphy,
 	struct wlan_interop_issues_ap_info interop_issues_ap = {0};
 	struct wlan_objmgr_psoc *psoc;
 
+	if (!adapter->vdev) {
+		osif_err("Invalid vdev");
+		return -EINVAL;
+	}
+
 	psoc = wlan_vdev_get_psoc(adapter->vdev);
 	if (!psoc) {
 		osif_err("Invalid psoc");