[Qemu-devel] [PATCH v2] ivshmem-server: Clean up shmem on shutdown

[Jan Kiszka <jan.kiszka@web.de>]

From: Jan Kiszka <jan.kiszka@siemens.com>

So far, the server leaves the posix shared memory object behind when
terminating, requiring the user to explicitly remove it in order to
start a new instance.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---

Changes in v2:
 - respect use_shm_open
 - also clean up in ivshmem_server_start error path

 contrib/ivshmem-server/ivshmem-server.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/contrib/ivshmem-server/ivshmem-server.c b/contrib/ivshmem-server/ivshmem-server.c
index 77f97b209c..88daee812d 100644
--- a/contrib/ivshmem-server/ivshmem-server.c
+++ b/contrib/ivshmem-server/ivshmem-server.c
@@ -353,6 +353,9 @@ ivshmem_server_start(IvshmemServer *server)
 err_close_sock:
     close(sock_fd);
 err_close_shm:
+    if (server->use_shm_open) {
+        shm_unlink(server->shm_path);
+    }
     close(shm_fd);
     return -1;
 }
@@ -370,6 +373,9 @@ ivshmem_server_close(IvshmemServer *server)
     }

     unlink(server->unix_sock_path);
+    if (server->use_shm_open) {
+        shm_unlink(server->shm_path);
+    }
     close(server->sock_fd);
     close(server->shm_fd);
     server->sock_fd = -1;
--
2.16.4