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Subject[PATCH] android: binder: fixup crash introduced by moving buffer hdr
Date
Fix crash introduced by 74310e06be4d74dcf67cd108366710dee5c576d5
(android: binder: Move buffer out of area shared with user space)
when close is called after open without mmap in between.

Signed-off-by: Sherry Yang <sherryy@android.com>
---
drivers/android/binder_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 78c42c0d62b9..2624a502fcde 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -713,7 +713,6 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
}

buffer->data = alloc->buffer;
- INIT_LIST_HEAD(&alloc->buffers);
list_add(&buffer->entry, &alloc->buffers);
buffer->free = 1;
binder_insert_free_buffer(alloc, buffer);
@@ -972,6 +971,7 @@ void binder_alloc_init(struct binder_alloc *alloc)
alloc->tsk = current->group_leader;
alloc->pid = current->group_leader->pid;
mutex_init(&alloc->mutex);
+ INIT_LIST_HEAD(&alloc->buffers);
}

void binder_alloc_shrinker_init(void)
--
2.14.1.581.gf28d330327-goog
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