From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 6 May 2010 14:34:56 +0000 (+0200)
Subject: block: Fix bdrv_commit
X-Git-Tag: v0.13.0-rc0~517^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c33491978c5c4c746cc0272d5f2df50aa14d1f02;p=thirdparty%2Fqemu.git

block: Fix bdrv_commit

When reopening the image, don't guess the driver, but use the same driver as
was used before. This is important if the format=... option was used for that
image.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block.c b/block.c
index 977d01f74e1..c134c2bcb51 100644
--- a/block.c
+++ b/block.c
@@ -701,12 +701,12 @@ int bdrv_commit(BlockDriverState *bs)
         bdrv_delete(bs->backing_hd);
         bs->backing_hd = NULL;
         bs_rw = bdrv_new("");
-        rw_ret = bdrv_open(bs_rw, filename, open_flags | BDRV_O_RDWR, NULL);
+        rw_ret = bdrv_open(bs_rw, filename, open_flags | BDRV_O_RDWR, drv);
         if (rw_ret < 0) {
             bdrv_delete(bs_rw);
             /* try to re-open read-only */
             bs_ro = bdrv_new("");
-            ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, NULL);
+            ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, drv);
             if (ret < 0) {
                 bdrv_delete(bs_ro);
                 /* drive not functional anymore */
@@ -758,7 +758,7 @@ ro_cleanup:
         bdrv_delete(bs->backing_hd);
         bs->backing_hd = NULL;
         bs_ro = bdrv_new("");
-        ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, NULL);
+        ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, drv);
         if (ret < 0) {
             bdrv_delete(bs_ro);
             /* drive not functional anymore */