Input: wistron_btns - fix a memory leak in wb_module_init error path

select_keymap() calls copy_keymap() to allocate a memory for keymap.
This patch adds a missing kfree(keymap) in wb_module_init error path.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 4dac8b79fcd4..12501de0c5cd 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -1347,7 +1347,7 @@ static int __init wb_module_init(void)
 
         err = map_bios();
         if (err)
-                return err;
+                goto err_free_keymap;
 
         err = platform_driver_register(&wistron_driver);
         if (err)
@@ -1371,6 +1371,8 @@ static int __init wb_module_init(void)
         platform_driver_unregister(&wistron_driver);
  err_unmap_bios:
         unmap_bios();
+ err_free_keymap:
+        kfree(keymap);
 
         return err;
 }