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[Qemu-devel] [PATCH 1.1 2/4] sheepdog: fix return value of do_load_save_


From: MORITA Kazutaka
Subject: [Qemu-devel] [PATCH 1.1 2/4] sheepdog: fix return value of do_load_save_vm_state
Date: Thu, 17 May 2012 03:15:32 +0900

bdrv_save_vmstate and bdrv_load_vmstate should return the number of
processed bytes on success.

Signed-off-by: MORITA Kazutaka <address@hidden>
---
 block/sheepdog.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/block/sheepdog.c b/block/sheepdog.c
index 776a1cc..146a221 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -1932,7 +1932,7 @@ static int do_load_save_vmstate(BDRVSheepdogState *s, 
uint8_t *data,
                                 int64_t pos, int size, int load)
 {
     int fd, create;
-    int ret = 0;
+    int ret = 0, done = 0;
     unsigned int data_len;
     uint64_t vmstate_oid;
     uint32_t vdi_index;
@@ -1971,10 +1971,14 @@ static int do_load_save_vmstate(BDRVSheepdogState *s, 
uint8_t *data,
 
         pos += data_len;
         size -= data_len;
-        ret += data_len;
+        done += data_len;
     }
 cleanup:
     closesocket(fd);
+
+    if (done)
+        return done;
+
     return ret;
 }
 
-- 
1.7.2.5




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