Messages in this thread Patch in this message | | | From | Leilei Zhao <> | Subject | [PATCH 08/10] crypto: atmel-aes: initialize spinlock in probe | Date | Tue, 7 Apr 2015 17:45:09 +0800 |
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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 --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); -- 1.7.9.5
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