staging: rtl8188eu: reduce indentation level in _rtw_free_sta_priv

Reduce indentation level in _rtw_free_sta_priv by returning early if
pstapriv is NULL. Also clears a line over 80 characters checkpatch
warning.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20191027130604.68379-2-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_sta_mgt.c

@@ -135,7 +135,9 @@ u32 _rtw_free_sta_priv(struct sta_priv *pstapriv)
 	struct recv_reorder_ctrl *preorder_ctrl;
 	int index;
 
-	if (pstapriv) {
+	if (!pstapriv)
+		return _SUCCESS;
+
 	/* delete all reordering_ctrl_timer */
 	spin_lock_bh(&pstapriv->sta_hash_lock);
 	for (index = 0; index < NUM_STA; index++) {
@@ -145,8 +147,7 @@ u32 _rtw_free_sta_priv(struct sta_priv *pstapriv)
 		while (phead != plist) {
 			int i;
 
-				psta = container_of(plist, struct sta_info,
-						    hash_list);
+			psta = container_of(plist, struct sta_info, hash_list);
 			plist = plist->next;
 
 			for (i = 0; i < 16; i++) {
@@ -156,10 +157,8 @@ u32 _rtw_free_sta_priv(struct sta_priv *pstapriv)
 		}
 	}
 	spin_unlock_bh(&pstapriv->sta_hash_lock);
-		/*===============================*/
 
 	vfree(pstapriv->pallocated_stainfo_buf);
-	}
 
 	return _SUCCESS;
 }