linux-kernel - [PATCH 4.1 257/267] p9_client_write(): avoid double p9_free

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Date:	Fri, 31 Jul 2015 12:41:48 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH 4.1 257/267] p9_client_write(): avoid double p9_free_req()

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@...iv.linux.org.uk>

commit 67e808fbb0404a12d9b9830a44bbb48d447d8bc9 upstream.

Braino in "9p: switch p9_client_write() to passing it struct iov_iter *";
if response is impossible to parse and we discard the request, get the
out of the loop right there.

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 net/9p/client.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1648,6 +1648,7 @@ p9_client_write(struct p9_fid *fid, u64
 		if (*err) {
 			trace_9p_protocol_dump(clnt, req->rc);
 			p9_free_req(clnt, req);
+			break;
 		}
 
 		p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);


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