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authorMichael S. Tsirkin <mst@redhat.com>2014-09-03 12:00:12 +0300
committerMichael Roth <mdroth@linux.vnet.ibm.com>2014-09-10 09:30:57 -0500
commit34d41c1a20b8763f250543c1e4609c01bed6c427 (patch)
tree6a92ad250e61ae75052edae6a209a6c954f4721d
parent6f8d05a8f801e09c9cdf9e2146225e826e5d7cc5 (diff)
downloadqemu-34d41c1a20b8763f250543c1e4609c01bed6c427.tar.gz
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> (cherry picked from commit 3a1655fc53a2d0375dc0b8cd358405c2cae288e3) Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
-rw-r--r--hw/scsi/vhost-scsi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index ddfe76aed0..7146e0ec49 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -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");