linux-kernel - [PATCH 3.10 20/43] Drivers: hv: vmbus: Fix a bug in vmbus

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Message-Id: <20141028033524.264589586@linuxfoundation.org>
Date:	Tue, 28 Oct 2014 11:36:18 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, "K. Y. Srinivasan" <kys@...rosoft.com>,
	Sitsofe Wheeler <sitsofe@...oo.com>
Subject: [PATCH 3.10 20/43] Drivers: hv: vmbus: Fix a bug in vmbus_open()

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

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

From: "K. Y. Srinivasan" <kys@...rosoft.com>

commit 45d727cee9e200f5b351528b9fb063b69cf702c8 upstream.

Fix a bug in vmbus_open() and properly propagate the error. I would
like to thank Dexuan Cui <decui@...rosoft.com> for identifying the
issue.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Tested-by: Sitsofe Wheeler <sitsofe@...oo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/hv/channel.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -199,8 +199,10 @@ int vmbus_open(struct vmbus_channel *new
 	ret = vmbus_post_msg(open_msg,
 			       sizeof(struct vmbus_channel_open_channel));
 
-	if (ret != 0)
+	if (ret != 0) {
+		err = ret;
 		goto error1;
+	}
 
 	t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ);
 	if (t == 0) {


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