From 533dfb250d1c8d2bb8c9b65252f7b296b29913d4 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Wed, 29 Nov 2017 22:29:47 +0900
Subject: 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>
---
 drivers/android/binder_alloc.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'drivers/android/binder_alloc.c')

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;
 }
-- 
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