android: binder: Check for errors in binder_alloc_shrinker_init().

Both list_lru_init() and register_shrinker() might return an error.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Sherry Yang <sherryy@android.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 0dba2308125c..fdf9d9f12aac 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -1006,8 +1006,14 @@ void binder_alloc_init(struct binder_alloc *alloc)
         INIT_LIST_HEAD(&alloc->buffers);
 }
 
-void binder_alloc_shrinker_init(void)
+int binder_alloc_shrinker_init(void)
 {
-        list_lru_init(&binder_alloc_lru);
-        register_shrinker(&binder_shrinker);
+        int ret = list_lru_init(&binder_alloc_lru);
+
+        if (ret == 0) {
+                ret = register_shrinker(&binder_shrinker);
+                if (ret)
+                        list_lru_destroy(&binder_alloc_lru);
+        }
+        return ret;
 }