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vvfat: use bdrv_new() to allocate BlockDriverState

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we need bdrv_new() to properly initialize BDS, don't allocate memory
manually.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Fam Zheng 2013-08-23 09:14:44 +08:00 committed by Stefan Hajnoczi
parent a94a3fac19
commit 3d34c6cd99
1 changed files with 1 additions and 1 deletions
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block/vvfat.c
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@ -2943,7 +2943,7 @@ static int enable_write_target(BDRVVVFATState *s)
unlink(s->qcow_filename);
#endif
s->bs->backing_hd = calloc(sizeof(BlockDriverState), 1);
s->bs->backing_hd = bdrv_new("");
s->bs->backing_hd->drv = &vvfat_write_target;
s->bs->backing_hd->opaque = g_malloc(sizeof(void*));
*(void**)s->bs->backing_hd->opaque = s;