From: Liu Jian liujian56@huawei.com
[ Upstream commit db2bf510bd5d57f064d9e1db395ed86a08320c54 ]
This reverts commit 1e9ac114c4428fdb7ff4635b45d4f46017e8916f.
This patch introduces a possible null-ptr-def problem. Revert it. And the fixed bug by this patch have resolved by commit 73f7b171b7c0 ("Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition").
Fixes: 1e9ac114c442 ("Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work") Signed-off-by: Liu Jian liujian56@huawei.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/btsdio.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c index 81125fb180351..fd9571d5fdac9 100644 --- a/drivers/bluetooth/btsdio.c +++ b/drivers/bluetooth/btsdio.c @@ -343,7 +343,6 @@ static void btsdio_remove(struct sdio_func *func)
BT_DBG("func %p", func);
- cancel_work_sync(&data->work); if (!data) return;