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[3.16.y-ckt,stable] Patch "rbd: fix error return code in rbd_dev_device_setup()" has been added to staging queue

Message ID 1416841472-4450-1-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques Nov. 24, 2014, 3:04 p.m. UTC
This is a note to let you know that I have just added a patch titled

    rbd: fix error return code in rbd_dev_device_setup()

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt2.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

From 0a62c31b440cd95358cc7c2490b78ac2453835ec Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 13 Aug 2014 20:49:52 -0700
Subject: rbd: fix error return code in rbd_dev_device_setup()

commit 255939e783d8f45f8c58487dfc18957c44ea9871 upstream.

Fix to return -ENOMEM from the workqueue alloc error handling
case instead of 0, as done elsewhere in this function.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: Ilya Dryomov <ilya.dryomov@inktank.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/block/rbd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--
2.1.0
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Patch

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 453afd257530..5c38fe1f4b85 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -5104,8 +5104,10 @@  static int rbd_dev_device_setup(struct rbd_device *rbd_dev)
 	set_disk_ro(rbd_dev->disk, rbd_dev->mapping.read_only);

 	rbd_dev->rq_wq = alloc_workqueue("%s", 0, 0, rbd_dev->disk->disk_name);
-	if (!rbd_dev->rq_wq)
+	if (!rbd_dev->rq_wq) {
+		ret = -ENOMEM;
 		goto err_out_mapping;
+	}

 	ret = rbd_bus_add_dev(rbd_dev);
 	if (ret)