diff --git a/src/share/redis.lua b/src/share/redis.lua
index c208848..52c0ed9 100644
--- a/src/share/redis.lua
+++ b/src/share/redis.lua
@@ -59,8 +59,4 @@ function _M:ttl(key)
 	return self.red:ttl(key)
 end
 
-function _M:call(key, ...)
-	return self.red:call(key, ...)
-end
-
 return _M
\ No newline at end of file
diff --git a/src/test/test.lua b/src/test/test.lua
index f071e17..78d9771 100644
--- a/src/test/test.lua
+++ b/src/test/test.lua
@@ -335,12 +335,12 @@ end
 
 local perm = require("util.permissionfilter")
 
-local rest = perm.getRolePermissions("admin")
+local rest = perm:getRolePermissions("admin")
 for _, row in pairs(rest) do
     print(row.key)
 end
 
-perm.clearRolePermissions("admin")
+perm:clearRolePermissions("admin")
 
 --读取用户表、角色表和权限表中配置的权限数据
 local roleDao = require("dao.role")
diff --git a/src/util/permissionfilter.lua b/src/util/permissionfilter.lua
index beeb2a5..ef4a66a 100644
--- a/src/util/permissionfilter.lua
+++ b/src/util/permissionfilter.lua
@@ -59,7 +59,10 @@ function _M:getRolePermissions(role_name)
     local prefix = role_name.."-"
     local cursor = "0"
     local result = red:call('SCAN', cursor, 'MATCH', prefix .. '*', 'COUNT')
-    cursor = result[1]
+    if result == false then
+        return allPermissions
+    end
+    --cursor = result[1]
     for _, key in ipairs(result[2]) do
         table.insert(allPermissions, key)
     end
@@ -70,7 +73,7 @@ end
 function _M:clearRolePermissions(role_name)
     --将redis中角色相关的键值去掉
     local keys = red:call("KEYS", role_name.."-*")
-    if #keys > 0 then
+    if keys then
         red:call("DEL", unpack(keys))
     end
 end