[PATCH] libata: fix ehc->i.action setting in ata_eh_autopsy()

ata_eh_autopsy() used to directly assign determined action mask to
ehc->i.action thus overriding actions set by some of nested analyze
functions.  This patch makes ata_eh_autopsy() add action masks just as
it's done in other places.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/scsi/libata-eh.c

@@ -1346,7 +1346,7 @@ static void ata_eh_autopsy(struct ata_port *ap)
 
 	/* record autopsy result */
 	ehc->i.dev = failed_dev;
-	ehc->i.action = action;
+	ehc->i.action |= action;
 
 	DPRINTK("EXIT\n");
 }