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crypto: tegra - fix missing unlock on error case

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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@trendmicro.com.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Wei Yongjun 2012-10-21 19:56:42 +08:00 committed by Herbert Xu
parent c12ab20b16
commit 3200da8d9a
1 changed files with 6 additions and 2 deletions
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8
drivers/crypto/tegra-aes.c
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@ -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);