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From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Eric Biggers <ebiggers@google.com>,
	kbuild test robot <lkp@intel.com>,
	linux-crypto@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] crypto: sun8i-ss - fix runtime pm imbalance on error
Date: Wed, 20 May 2020 16:06:09 +0800	[thread overview]
Message-ID: <20200520080617.23801-1-dinghao.liu@zju.edu.cn> (raw)

pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
 drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 84d52fc3a2da..b1c766bf4483 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -359,6 +359,7 @@ int sun8i_ss_cipher_init(struct crypto_tfm *tfm)
 
 	return 0;
 error_pm:
+	pm_runtime_put_sync(op->ss->dev);
 	crypto_free_sync_skcipher(op->fallback_tfm);
 	return err;
 }
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
	Eric Biggers <ebiggers@google.com>,
	linux-kernel@vger.kernel.org, Maxime Ripard <mripard@kernel.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Corentin Labbe <clabbe.montjoie@gmail.com>,
	linux-crypto@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	linux-arm-kernel@lists.infradead.org,
	kbuild test robot <lkp@intel.com>
Subject: [PATCH] crypto: sun8i-ss - fix runtime pm imbalance on error
Date: Wed, 20 May 2020 16:06:09 +0800	[thread overview]
Message-ID: <20200520080617.23801-1-dinghao.liu@zju.edu.cn> (raw)

pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
 drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 84d52fc3a2da..b1c766bf4483 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -359,6 +359,7 @@ int sun8i_ss_cipher_init(struct crypto_tfm *tfm)
 
 	return 0;
 error_pm:
+	pm_runtime_put_sync(op->ss->dev);
 	crypto_free_sync_skcipher(op->fallback_tfm);
 	return err;
 }
-- 
2.17.1


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             reply	other threads:[~2020-05-20  8:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20  8:06 Dinghao Liu [this message]
2020-05-20  8:06 ` [PATCH] crypto: sun8i-ss - fix runtime pm imbalance on error Dinghao Liu
2020-05-20  8:11 Dinghao Liu
2020-05-20  8:11 ` Dinghao Liu

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