linux-kernel - [PATCH] n2_crypto: Fix a get/put

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Date:	Sat, 06 Aug 2011 10:26:25 +0200
From:	Thomas Meyer <thomas@...3r.de>
To:	davem@...emloft.net, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] n2_crypto: Fix a get/put_cpu() imbalance

From: Thomas Meyer <thomas@...3r.de>

Fix a get/put_cpu() imbalance in the error case when qp == NULL

Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index d0183ddb..6683b58 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -1006,9 +1006,8 @@ static int n2_do_ecb(struct ablkcipher_request *req, bool encrypt)
 
        spin_unlock_irqrestore(&qp->lock, flags);
 
-       put_cpu();
-
 out:
+       put_cpu();
        n2_chunk_complete(req, NULL);
        return err;
 }
@@ -1096,9 +1095,8 @@ static int n2_do_chaining(struct ablkcipher_request *req, bool encrypt)
 
        spin_unlock_irqrestore(&qp->lock, flags);
 
-       put_cpu();
-
 out:
+       put_cpu();
        n2_chunk_complete(req, err ? NULL : final_iv_addr);
        return err;
 }







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