[dpdk-stable] patch 'vhost: fix fd leak in kick setup' has been queued to stable release 19.11.6

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 19.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/19/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/4089c1d4be34ed396c4c99eac15d2d1bb8b465d4

Thanks.

Luca Boccassi

---
>From 4089c1d4be34ed396c4c99eac15d2d1bb8b465d4 Mon Sep 17 00:00:00 2001
From: Maxime Coquelin <maxime.coquelin at redhat.com>
Date: Thu, 12 Nov 2020 18:10:29 +0100
Subject: [PATCH] vhost: fix fd leak in kick setup

[ upstream commit bc900f86aa943006b9f97f3297aeed5ef3caaf5e ]

This patch fixes a file descriptor leak which happens
in the error path of vhost_user_set_vring_kick().

Fixes: 4796ad63ba1f ("examples/vhost: import userspace vhost application")

Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia at intel.com>
Reviewed-by: Xueming Li <xuemingl at nvidia.com>
---
 lib/librte_vhost/vhost_user.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 4647ba64f0..dc1e312d84 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1844,8 +1844,12 @@ vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg,
 
 	/* Interpret ring addresses only when ring is started. */
 	dev = translate_ring_addresses(dev, file.index);
-	if (!dev)
+	if (!dev) {
+		if (file.fd != VIRTIO_INVALID_EVENTFD)
+			close(file.fd);
+
 		return RTE_VHOST_MSG_RESULT_ERR;
+	}
 
 	*pdev = dev;
 
-- 
2.27.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-11-17 11:13:14.251629916 +0000
+++ 0030-vhost-fix-fd-leak-in-kick-setup.patch	2020-11-17 11:13:12.937116931 +0000
@@ -1 +1 @@
-From bc900f86aa943006b9f97f3297aeed5ef3caaf5e Mon Sep 17 00:00:00 2001
+From 4089c1d4be34ed396c4c99eac15d2d1bb8b465d4 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit bc900f86aa943006b9f97f3297aeed5ef3caaf5e ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index 23c115f994..45c8ac09da 100644
+index 4647ba64f0..dc1e312d84 100644
@@ -23 +24 @@
-@@ -1858,8 +1858,12 @@ vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg,
+@@ -1844,8 +1844,12 @@ vhost_user_set_vring_kick(struct virtio_net **pdev, struct VhostUserMsg *msg,