Remove the flush_workqueue(system_long_wq) call since flushing
system_long_wq is deadlock-prone and since that call is redundant.
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Fixes: ef6c49d87c34 ("IB/srp: Eliminate state SRP_TARGET_DEAD")
Reported-by: syzbot+831661966588c802aae9@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/infiniband/ulp/srp/ib_srp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index e174e853f8a4..285b766e4e70 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -4047,9 +4047,11 @@ static void srp_remove_one(struct ib_device *device, void *client_data)
spin_unlock(&host->target_lock);
/*
- * Wait for tl_err and target port removal tasks.
+ * srp_queue_remove_work() queues a call to
+ * srp_remove_target(). The latter function cancels
+ * target->tl_err_work so waiting for the remove works to
+ * finish is sufficient.
*/
- flush_workqueue(system_long_wq);
flush_workqueue(srp_remove_wq);
kfree(host);
