When adding the @vm to the @args for usage during a thread or
callback, let's add the reference to it at the time of adding to
ensure nothing else deletes it. The corresponding Unref is then
added to the Dispose function.

Signed-off-by: John Ferlan <jferlan@redhat.com>
---
 src/libxl/libxl_migration.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
index d7b494b392..7fe352306c 100644
--- a/src/libxl/libxl_migration.c
+++ b/src/libxl/libxl_migration.c
@@ -239,6 +239,7 @@ libxlMigrationDstArgsDispose(void *obj)
 
     libxlMigrationCookieFree(args->migcookie);
     VIR_FREE(args->socks);
+    virObjectUnref(args->vm);
 }
 
 static int
@@ -608,7 +609,7 @@ libxlDomainMigrationDstPrepareTunnel3(virConnectPtr dconn,
         goto error;
 
     args->conn = dconn;
-    args->vm = vm;
+    args->vm = virObjectRef(vm);
     args->flags = flags;
     args->migcookie = mig;
     /* Receive from pipeOut */
@@ -763,7 +764,7 @@ libxlDomainMigrationDstPrepare(virConnectPtr dconn,
         goto error;
 
     args->conn = dconn;
-    args->vm = vm;
+    args->vm = virObjectRef(vm);
     args->flags = flags;
     args->socks = socks;
     args->nsocks = nsocks;
-- 
2.13.6

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On Tue, Apr 24, 2018 at 02:28 PM +0200, John Ferlan <jferlan@redhat.com> wrote:
> When adding the @vm to the @args for usage during a thread or
> callback, let's add the reference to it at the time of adding to
> ensure nothing else deletes it. The corresponding Unref is then
> added to the Dispose function.
>
> Signed-off-by: John Ferlan <jferlan@redhat.com>
> ---
>  src/libxl/libxl_migration.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
> index d7b494b392..7fe352306c 100644
> --- a/src/libxl/libxl_migration.c
> +++ b/src/libxl/libxl_migration.c
> @@ -239,6 +239,7 @@ libxlMigrationDstArgsDispose(void *obj)
>
>      libxlMigrationCookieFree(args->migcookie);
>      VIR_FREE(args->socks);
> +    virObjectUnref(args->vm);
>  }
>
>  static int
> @@ -608,7 +609,7 @@ libxlDomainMigrationDstPrepareTunnel3(virConnectPtr dconn,
>          goto error;
>
>      args->conn = dconn;
> -    args->vm = vm;
> +    args->vm = virObjectRef(vm);
>      args->flags = flags;
>      args->migcookie = mig;
>      /* Receive from pipeOut */
> @@ -763,7 +764,7 @@ libxlDomainMigrationDstPrepare(virConnectPtr dconn,
>          goto error;
>
>      args->conn = dconn;
> -    args->vm = vm;
> +    args->vm = virObjectRef(vm);
>      args->flags = flags;
>      args->socks = socks;
>      args->nsocks = nsocks;
> --
> 2.13.6
>
> --
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>

Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>

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   Marc Hartmayer

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