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qcow2: Respect bdrv_truncate() error 

bdrv_truncate() may fail and qcow2_write_compressed() should return the
error code in that case.

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 6a69b9620a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Max Reitz 2014-12-02 18:32:52 +01:00 committed by Michael Roth
parent 6f45cda114
commit 9b3f3d6da9
1 changed files with 1 additions and 2 deletions
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3
block/qcow2.c
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@ -2162,8 +2162,7 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num,
/* align end of file to a sector boundary to ease reading with
sector based I/Os */
cluster_offset = bdrv_getlength(bs->file);
bdrv_truncate(bs->file, cluster_offset);
return 0;
return bdrv_truncate(bs->file, cluster_offset);
}
if (nb_sectors != s->cluster_sectors) {