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From: Wang Hai <wanghai38@huawei.com>
To: <davem@davemloft.net>, <kas@fi.muni.cz>, <kuba@kernel.org>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH net] cosa: Add missing kfree in error path of cosa_write
Date: Tue, 10 Nov 2020 22:46:14 +0800	[thread overview]
Message-ID: <20201110144614.43194-1-wanghai38@huawei.com> (raw)

If memory allocation for 'kbuf' succeed, cosa_write() doesn't have a
corresponding kfree() in exception handling. Thus add kfree() for this
function implementation.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
---
 drivers/net/wan/cosa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index f8aed0696d77..2369ca250cd6 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -889,6 +889,7 @@ static ssize_t cosa_write(struct file *file,
 			chan->tx_status = 1;
 			spin_unlock_irqrestore(&cosa->lock, flags);
 			up(&chan->wsem);
+			kfree(kbuf);
 			return -ERESTARTSYS;
 		}
 	}
-- 
2.17.1


             reply	other threads:[~2020-11-10 14:43 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-10 14:46 Wang Hai [this message]
2020-11-10 16:38 ` Jan Kasprzak
2020-11-12  2:03   ` Jakub Kicinski

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