scsi: isci: Return result of sas_register_ha()

To properly manage possible failure of sas_register_ha() in
isci_register_sas_ha(), return its result instead of zero

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Artem Chernyshev <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Artur Paszkiewicz <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: dTenebrae

drivers/scsi/isci/init.c

@@ -264,9 +264,7 @@ static int isci_register_sas_ha(struct isci_host *isci_host)
 
 	sas_ha->strict_wide_ports = 1;
 
-	sas_register_ha(sas_ha);
-
-	return 0;
+	return sas_register_ha(sas_ha);
 }
 
 static void isci_unregister(struct isci_host *isci_host)