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[Qemu-devel] [PATCHv2 11/14] nbd: make nbd_client_session_close() idempo


From: Marc-André Lureau
Subject: [Qemu-devel] [PATCHv2 11/14] nbd: make nbd_client_session_close() idempotent
Date: Sun, 1 Dec 2013 22:23:44 +0100

From: Marc-André Lureau <address@hidden>

Signed-off-by: Marc-André Lureau <address@hidden>
---
 block/nbd-client.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/block/nbd-client.c b/block/nbd-client.c
index 3dfae1d..9156093 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -337,7 +337,12 @@ static void nbd_teardown_connection(NbdClientSession 
*client)
 
 void nbd_client_session_close(NbdClientSession *client)
 {
+    if (!client->bs) {
+        return;
+    }
+
     nbd_teardown_connection(client);
+    client->bs = NULL;
 }
 
 int nbd_client_session_init(NbdClientSession *client, BlockDriverState *bs,
-- 
1.8.4.2




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