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[08/10] crypto: atmel-aes: initialize spinlock in probe

Message ID 1428399911-23325-9-git-send-email-leilei.zhao@atmel.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Leilei Zhao April 7, 2015, 9:45 a.m. UTC 
Kernel will report "BUG: spinlock lockup suspected on CPU#0"
when CONFIG_DEBUG_SPINLOCK is enabled in kernel config and the
spinlock is used at the first time. It's caused by uninitialized
spinlock, so just initialize it in probe.

Signed-off-by: Leilei Zhao <leilei.zhao@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 drivers/crypto/atmel-aes.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index ddea772..f0532ab 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -1341,6 +1341,7 @@  static int atmel_aes_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, aes_dd);
 
 	INIT_LIST_HEAD(&aes_dd->list);
+	spin_lock_init(&aes_dd->lock);
 
 	tasklet_init(&aes_dd->done_task, atmel_aes_done_task,
 					(unsigned long)aes_dd);