nbd: Close socket on negotiation failure.

Otherwise, the nbd client may hang waiting for the server response.

Signed-off-by: Hani Benhabiles <hani@linux.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

1 files changed, 3 insertions, 1 deletions

diff --git a/qemu-nbd.c b/qemu-nbd.c
index eed79fa15e..f70e4b0dfc 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -369,8 +369,10 @@ static void nbd_accept(void *opaque)
         return;
     }
 
-    if (fd >= 0 && nbd_client_new(exp, fd, nbd_client_closed)) {
+    if (nbd_client_new(exp, fd, nbd_client_closed)) {
         nb_fds++;
+    } else {
+        close(fd);
     }
 }