From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Add the missing unlock on the error handling path in function
tegra_aes_get_random() and tegra_aes_rng_reset().
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/crypto/tegra-aes.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 37185e6..19adf1c 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -674,8 +674,10 @@ static int tegra_aes_get_random(struct crypto_rng *tfm, u8 *rdata,
mutex_lock(&aes_lock);
ret = clk_prepare_enable(dd->aes_clk);
- if (ret)
+ if (ret) {
+ mutex_unlock(&aes_lock);
return ret;
+ }
ctx->dd = dd;
dd->ctx = ctx;
@@ -759,8 +761,10 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
dd->flags = FLAGS_ENCRYPT | FLAGS_RNG;
ret = clk_prepare_enable(dd->aes_clk);
- if (ret)
+ if (ret) {
+ mutex_unlock(&aes_lock);
return ret;
+ }
aes_set_key(dd);
--
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