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vhost-scsi: init backend features earlier 

As vhost core can use backend_features during init, clear it earlier to
avoid using uninitialized memory.
This use would be harmless since vhost scsi ignores the result
anyway, but initializing earlier will help prevent valgrind errors,
and make scsi and net behave similarly.

Cc: qemu-stable@nongnu.org
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2014-09-03 12:00:12 +03:00
parent b49ae9138d
commit 3a1655fc53
1 changed files with 1 additions and 1 deletions
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2
hw/scsi/vhost-scsi.c
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@ -238,6 +238,7 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
s->dev.nvqs = VHOST_SCSI_VQ_NUM_FIXED + vs->conf.num_queues;
s->dev.vqs = g_new(struct vhost_virtqueue, s->dev.nvqs);
s->dev.vq_index = 0;
s->dev.backend_features = 0;
ret = vhost_dev_init(&s->dev, (void *)(uintptr_t)vhostfd,
VHOST_BACKEND_TYPE_KERNEL, true);
@ -246,7 +247,6 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
strerror(-ret));
return;
}
s->dev.backend_features = 0;
error_setg(&s->migration_blocker,
"vhost-scsi does not support migration");