[PATCH 10/12] crypto: atmel - update workqueue flags and add flush on exit

[Lothar Rubusch]

Update workqueue initialization to use WQ_MEM_RECLAIM instead of
WQ_PERCPU. WQ_MEM_RECLAIM already provides per-CPU execution
semantics via a bound workqueue while also ensuring forward progress
via a rescue thread.

Add a flush_workqueue() call during module exit to ensure all queued
work is completed before destroying the workqueue.

Signed-off-by: Lothar Rubusch <l.rubusch at gmail.com>
---
 drivers/crypto/atmel-i2c.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/atmel-i2c.c b/drivers/crypto/atmel-i2c.c
index 50b6bce478d2..0ec2d768a763 100644
--- a/drivers/crypto/atmel-i2c.c
+++ b/drivers/crypto/atmel-i2c.c
@@ -626,12 +626,13 @@ EXPORT_SYMBOL(atmel_i2c_probe);
 
 static int __init atmel_i2c_init(void)
 {
-	atmel_wq = alloc_workqueue("atmel_wq", WQ_PERCPU, 0);
+	atmel_wq = alloc_workqueue("atmel_wq", WQ_MEM_RECLAIM, 0);
 	return atmel_wq ? 0 : -ENOMEM;
 }
 
 static void __exit atmel_i2c_exit(void)
 {
+	flush_workqueue(atmel_wq);
 	destroy_workqueue(atmel_wq);
 }
 
-- 
2.53.0