[PATCH v2 2/2] migration/rdma: zore out head.repeat to make the error more clear

[Li Zhijian]

Previously, we got a confusion error that complains
the RDMAControlHeader.repeat:
qemu-system-x86_64: rdma: Too many requests in this message 
(3638950032).Bailing.

Actually, it's caused by an unexpected RDMAControlHeader.type.
After this patch, error will become:
qemu-system-x86_64: Unknown control message QEMU FILE

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>

---
V2: add reviewed-by tags
---
 migration/rdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migration/rdma.c b/migration/rdma.c
index a2a3db35b1..3073d9953c 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -2812,7 +2812,7 @@ static ssize_t qio_channel_rdma_writev(QIOChannel *ioc,
         size_t remaining = iov[i].iov_len;
         uint8_t * data = (void *)iov[i].iov_base;
         while (remaining) {
-            RDMAControlHeader head;
+            RDMAControlHeader head = {};
 
             len = MIN(remaining, RDMA_SEND_INCREMENT);
             remaining -= len;
-- 
2.31.1