Release reader lock on r/w sem before stopping khidp thread (which needs to
claim the writer lock on sem before unlinking the session).
NB: kthread_stop waits for thread completion.
---
net/bluetooth/hidp/core.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index c405a95..16d75d7 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -1096,6 +1096,7 @@ int hidp_del_connection(struct hidp_conndel_req *req)
{
struct hidp_session *session;
int err = 0;
+ bool stop_thread = false;
BT_DBG("");
@@ -1111,12 +1112,14 @@ int hidp_del_connection(struct hidp_conndel_req *req)
skb_queue_purge(&session->ctrl_transmit);
skb_queue_purge(&session->intr_transmit);
- kthread_stop(session->task);
+ stop_thread = true;
}
} else
err = -ENOENT;
up_read(&hidp_session_sem);
+ if (stop_thread)
+ kthread_stop(session->task);
return err;
}
--
1.7.4.1
--
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