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From: "Eugenio Pérez" <eperezma@redhat.com>
To: qemu-devel@nongnu.org
Cc: Jason Wang <jasowang@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	Peter Maydell <peter.maydell@linaro.org>,
	qemu-trivial@nongnu.org, Laurent Vivier <lvivier@redhat.com>
Subject: [PATCH] vdpa: Fix file descriptor leak on get features error
Date: Mon,  1 Aug 2022 16:47:14 +0200	[thread overview]
Message-ID: <20220801144714.181644-1-eperezma@redhat.com> (raw)

File descriptor vdpa_device_fd is not free in the case of returning
error from vhost_vdpa_get_features. Fixing it by making all errors go to
the same error path.

Resolves: Coverity CID 1490785
Fixes: 8170ab3f43 ("vdpa: Extract get features part from vhost_vdpa_get_max_queue_pairs")

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 net/vhost-vdpa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 6abad276a6..303447a68e 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -566,7 +566,7 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
     g_autofree NetClientState **ncs = NULL;
     g_autoptr(VhostIOVATree) iova_tree = NULL;
     NetClientState *nc;
-    int queue_pairs, r, i, has_cvq = 0;
+    int queue_pairs, r, i = 0, has_cvq = 0;
 
     assert(netdev->type == NET_CLIENT_DRIVER_VHOST_VDPA);
     opts = &netdev->u.vhost_vdpa;
@@ -582,7 +582,7 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
 
     r = vhost_vdpa_get_features(vdpa_device_fd, &features, errp);
     if (unlikely(r < 0)) {
-        return r;
+        goto err;
     }
 
     queue_pairs = vhost_vdpa_get_max_queue_pairs(vdpa_device_fd, features,
-- 
2.31.1



             reply	other threads:[~2022-08-01 14:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-01 14:47 Eugenio Pérez [this message]
2022-08-01 18:31 ` [PATCH] vdpa: Fix file descriptor leak on get features error Laurent Vivier
2022-08-01 18:33   ` Peter Maydell
2022-08-01 18:48     ` Eugenio Perez Martin
2022-08-01 19:28       ` Michael S. Tsirkin

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