Commit 9472ca1b authored Nov 06, 2015 by Kranthikumar Kurapati Committed by Gerrit - the friendly Code Review server Nov 17, 2015

crypto: msm: qcrypto: Fix spinlock deadlock issue



Disable and then enable bottom half processing across completion callback.
Otherwise spinlock deadlock may happen.

Change-Id: I1d38a9b978d6a3b72c820fb8c5ccc27e7afc06a3
Acked-by: Che-Min Hsieh <cheminh@qti.qualcomm.com>
Signed-off-by: Kranthikumar Kurapati <kkurap@codeaurora.org>

parent fa3dfef9

drivers/crypto/msm/qcrypto.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1387,7 +1387,9 @@ again:
		rev = llist_next(rev);

		areq = arsp->async_req;
		local_bh_disable();
		areq->complete(areq, arsp->res);
		local_bh_enable();
		atomic_dec(&cp->resp_cnt);
		if (ACCESS_ONCE(cp->ce_req_proc_sts) == STOPPED &&
		atomic_read(&cp->resp_cnt) <=