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authorLeilei Zhao <leilei.zhao@atmel.com>2015-04-07 17:45:06 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-04-08 22:20:02 +0800
commit62728e82026c90af004dd2c328c1314f2f3e6b58 (patch)
treed15da423e734db525adea1c920ff5bf0ff8a1069 /drivers/crypto
parent803eeae8f3eb394d898a7aa65ba706628dd6a85c (diff)
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>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/atmel-sha.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index b093862eebf3..08dfddfcffbb 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -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);