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blktap2: Fix uninitialised value error.
Signed-off-by: Keir Fraser <keir@xen.org>
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Keir Fraser committed
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@@ -1428,7 +1428,7 @@ int tdqcow_get_parent_id(td_driver_t *driver, td_disk_id_t *id)
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{
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off_t off;
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char *buf, *filename;
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int len, secs, type, err = -EINVAL;
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int len, secs, type = 0, err = -EINVAL;
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struct tdqcow_state *child = (struct tdqcow_state *)driver->data;
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if (!child->backing_file_offset)
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