linux-kernel - [PATCH] crypto: cavium: fix leak on curr if curr->head fails to be allocated

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Message-Id: <20170217155743.31525-1-colin.king@canonical.com>
Date:   Fri, 17 Feb 2017 15:57:43 +0000
From:   Colin King <colin.king@...onical.com>
To:     George Cherian <george.cherian@...ium.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: cavium: fix leak on curr if curr->head fails to be allocated

From: Colin Ian King <colin.king@...onical.com>

The exit path when curr->head cannot be allocated fails to kfree the
earlier allocated curr.  Fix this by kfree'ing it.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/crypto/cavium/cpt/cptvf_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/cavium/cpt/cptvf_main.c b/drivers/crypto/cavium/cpt/cptvf_main.c
index 527bdc3..3247c7f 100644
--- a/drivers/crypto/cavium/cpt/cptvf_main.c
+++ b/drivers/crypto/cavium/cpt/cptvf_main.c
@@ -242,6 +242,7 @@ static int alloc_command_queues(struct cpt_vf *cptvf,
 			if (!curr->head) {
 				dev_err(&pdev->dev, "Command Q (%d) chunk (%d) allocation failed\n",
 					i, queue->nchunks);
+				kfree(curr);
 				goto cmd_qfail;
 			}
 
-- 
2.10.2