UBUNTU: SAUCE: Revert "scsi: libsas: allow async aborts"

BugLink: http://bugs.launchpad.net/bugs/1726519

This reverts commit 909657615d.

Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>

drivers/scsi/libsas/sas_scsi_host.c

@@ -431,6 +431,9 @@ int sas_eh_abort_handler(struct scsi_cmnd *cmd)
 	struct sas_internal *i = to_sas_internal(host->transportt);
 	unsigned long flags;
 
+	if (current != host->ehandler)
+		return FAILED;
+
 	if (!i->dft->lldd_abort_task)
 		return FAILED;