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Commit 533dfb25 authored by Tetsuo Handa's avatar Tetsuo Handa Committed by Greg Kroah-Hartman
Browse files

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



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

Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Sherry Yang <sherryy@android.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 22ec1a2a

drivers/android/binder.c

+3 −1
Original line number Diff line number Diff line
@@ -5569,7 +5569,9 @@ static int __init binder_init(void) 
	struct binder_device *device;

	struct hlist_node *tmp;



	binder_alloc_shrinker_init();

	ret = binder_alloc_shrinker_init();

	if (ret)

		return ret;



	atomic_set(&binder_transaction_log.cur, ~0U);

	atomic_set(&binder_transaction_log_failed.cur, ~0U);

drivers/android/binder_alloc.c

+9 −3
Original line number Diff line number Diff line
@@ -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;

}

drivers/android/binder_alloc.h

+1 −1
Original line number Diff line number Diff line
@@ -130,7 +130,7 @@ extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc, 
						  size_t extra_buffers_size,

						  int is_async);

extern void binder_alloc_init(struct binder_alloc *alloc);

void binder_alloc_shrinker_init(void);

extern int binder_alloc_shrinker_init(void);

extern void binder_alloc_vma_close(struct binder_alloc *alloc);

extern struct binder_buffer *

binder_alloc_prepare_to_free(struct binder_alloc *alloc,