Re: [PATCH] qemu: forget free priv->origname when get fail in qemuMigrationPrepareAny

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On Tue, Jan 13, 2015 at 10:15:52 +0800, Luyao Huang wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1181182
> 
> When we meet error in qemuMigrationPrepareAny and goto
> cleanup with rc < 0, we forget clear the priv->origname and this
> will make this vm migrate fail next time because leave a wrong
> origname in  priv, and will Generate a wrong cookie when do
> migrate next time.
> 
> This patch will make priv->origname is NULL when migrate fail
> in target host.
> 
> Signed-off-by: Luyao Huang <lhuang@xxxxxxxxxx>
> ---
>  src/qemu/qemu_migration.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
> index 77e0b35..a282c43 100644
> --- a/src/qemu/qemu_migration.c
> +++ b/src/qemu/qemu_migration.c
> @@ -3104,6 +3104,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver,
>      if (ret < 0 && priv) {
>          /* priv is set right after vm is added to the list of domains
>           * and there is no 'goto cleanup;' in the middle of those */
> +        VIR_FREE(priv->origname);
>          virPortAllocatorRelease(driver->migrationPorts, priv->nbdPort);
>          priv->nbdPort = 0;
>          qemuDomainRemoveInactive(driver, vm);

ACK, I'll push this patch shortly.

Jirka

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