sandbox/fs: Free memory allocated by os_dirent_ls

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Acked-by: Simon Glass <sjg@chromium.org>

fs/sandbox/sandboxfs.c

@@ -94,6 +94,7 @@ int sandbox_fs_ls(const char *dirname)
 		printf("%s %10lu %s\n", os_dirent_get_typename(node->type),
 		       node->size, node->name);
 	}
+	os_dirent_free(head);
 
 	return 0;
 }

include/os.h

@@ -214,10 +214,19 @@ struct os_dirent_node {
  */
 int os_dirent_ls(const char *dirname, struct os_dirent_node **headp);
 
+/**
+ * Free directory list
+ *
+ * This frees a linked list containing a directory listing.
+ *
+ * @param node		Pointer to head of linked list
+ */
+void os_dirent_free(struct os_dirent_node *node);
+
 /**
  * Get the name of a directory entry type
  *
- * @param type		Type to cehck
+ * @param type		Type to check
  * @return string containing the name of that type, or "???" if none/invalid
  */
 const char *os_dirent_get_typename(enum os_dirent_t type);