crypto: atmel-tdes - initialize spinlock in probe

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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 8495b8959d0b..ca2999709eb4 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -1370,6 +1370,7 @@ static int atmel_tdes_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, tdes_dd);
 
         INIT_LIST_HEAD(&tdes_dd->list);
+        spin_lock_init(&tdes_dd->lock);
 
         tasklet_init(&tdes_dd->done_task, atmel_tdes_done_task,
                                         (unsigned long)tdes_dd);