From: Liu Bo <bo.liu@linux.alibaba.com>
Date: Mon, 27 Jan 2020 19:01:56 +0000
Subject: [PATCH] virtiofsd: cleanup allocated resource in se
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This cleans up unfreed resources in se on quiting, including
se->virtio_dev, se->vu_socket_path, se->vu_socketfd.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit 61cfc44982e566c33b9d5df17858e4d5ae373873)
---
 tools/virtiofsd/fuse_lowlevel.c | 7 +++++++
 tools/virtiofsd/fuse_virtio.c   | 7 +++++++
 tools/virtiofsd/fuse_virtio.h   | 2 +-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index 65f91dabae..440508a6ec 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -2532,6 +2532,13 @@ void fuse_session_destroy(struct fuse_session *se)
     if (se->fd != -1) {
         close(se->fd);
     }
+
+    if (se->vu_socket_path) {
+        virtio_session_close(se);
+        free(se->vu_socket_path);
+        se->vu_socket_path = NULL;
+    }
+
     free(se);
 }
 
diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
index 7a8774a3ee..e7bd772805 100644
--- a/tools/virtiofsd/fuse_virtio.c
+++ b/tools/virtiofsd/fuse_virtio.c
@@ -833,3 +833,10 @@ int virtio_session_mount(struct fuse_session *se)
 
     return 0;
 }
+
+void virtio_session_close(struct fuse_session *se)
+{
+    close(se->vu_socketfd);
+    free(se->virtio_dev);
+    se->virtio_dev = NULL;
+}
diff --git a/tools/virtiofsd/fuse_virtio.h b/tools/virtiofsd/fuse_virtio.h
index cc676b9193..111684032c 100644
--- a/tools/virtiofsd/fuse_virtio.h
+++ b/tools/virtiofsd/fuse_virtio.h
@@ -19,7 +19,7 @@
 struct fuse_session;
 
 int virtio_session_mount(struct fuse_session *se);
-
+void virtio_session_close(struct fuse_session *se);
 int virtio_loop(struct fuse_session *se);