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crypto: atmel-sha - 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>
This commit is contained in:
Leilei Zhao 2015-04-07 17:45:06 +08:00 committed by Herbert Xu
parent 803eeae8f3
commit 62728e8202
1 changed files with 1 additions and 0 deletions
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drivers/crypto/atmel-sha.c
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@ -1367,6 +1367,7 @@ static int atmel_sha_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, sha_dd);
INIT_LIST_HEAD(&sha_dd->list);
spin_lock_init(&sha_dd->lock);
tasklet_init(&sha_dd->done_task, atmel_sha_done_task,
(unsigned long)sha_dd);