Now that we use kzalloc() to allocate the hbus buffer, we must call
kfree() in the error path as well to prevent memory leakage.
Fixes: 877b911a5ba0 ("PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
 free_dom:
        hv_put_dom_num(hbus->sysdata.domain);
 free_bus:
-       free_page((unsigned long)hbus);
+       kfree(hbus);
        return ret;
 }