halapi: common: Change return type of hal_common_put_backend and backend->exit

[platform/hal/api/common.git] / src / hal-api-common.c

diff --git a/src/hal-api-common.c b/src/hal-api-common.c
index 03cb953..9be72fa 100644 (file)
--- a/src/hal-api-common.c
+++ b/src/hal-api-common.c
@@ -149,7 +149,7 @@ err:
 }
 
 EXPORT
-void hal_common_put_backend(enum hal_module module, void *data)
+int hal_common_put_backend(enum hal_module module, void *data)
 {
        hal_backend *backend = NULL;
        void *handle = NULL;
@@ -158,22 +158,28 @@ void hal_common_put_backend(enum hal_module module, void *data)
        /* Check parameter whether is valid or not */
        if (module <= HAL_MODULE_UNKNOWN || module >= HAL_MODULE_END) {
                _E("Invalid parameter of HAL module (%d)\n", module);
-               return;
+               return TIZEN_ERROR_INVALID_PARAMETER;
        }
 
        backend = hal_module_info[module].library_backend;
        handle = hal_module_info[module].library_handle;
 
-       if (backend) {
-               if (backend->exit)
-                       backend->exit(data);
-
-               _I("Put HAL backend: name(%s)/vendor(%s)\n",
-                       backend->name, backend->vendor);
+       if (backend && backend->exit) {
+               ret = backend->exit(data);
+               if (ret < 0) {
+                       _E("Failed to exit backend: name(%s)/vendor(%s)\n",
+                                               backend->name, backend->vendor);
+                       return TIZEN_ERROR_INVALID_PARAMETER;
+               }
        }
 
        if (handle)
                dlclose(handle);
+
+       _I("Put HAL backend: name(%s)/vendor(%s)\n",
+                       backend->name, backend->vendor);
+
+       return TIZEN_ERROR_NONE;
 }
 
 EXPORT