[SCSI] mpt fusion: deregister from transport layer if PCI registratio…

…n failed

The mptspi and mptsas drivers are modified to deregister from transport layer
if registration with PCI driver failed

Signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/message/fusion/mptsas.c

@@ -3301,6 +3301,8 @@ static struct pci_driver mptsas_driver = {
 static int __init
 mptsas_init(void)
 {
+	int error;
+
 	show_mptmod_ver(my_NAME, my_VERSION);
 
 	mptsas_transport_template =
@@ -3324,7 +3326,11 @@ mptsas_init(void)
 		  ": Registered for IOC reset notifications\n"));
 	}
 
-	return pci_register_driver(&mptsas_driver);
+	error = pci_register_driver(&mptsas_driver);
+	if (error)
+		sas_release_transport(mptsas_transport_template);
+
+	return error;
 }
 
 static void __exit

drivers/message/fusion/mptspi.c

@@ -1524,6 +1524,8 @@ static struct pci_driver mptspi_driver = {
 static int __init
 mptspi_init(void)
 {
+	int error;
+
 	show_mptmod_ver(my_NAME, my_VERSION);
 
 	mptspi_transport_template = spi_attach_transport(&mptspi_transport_functions);
@@ -1544,7 +1546,11 @@ mptspi_init(void)
 		  ": Registered for IOC reset notifications\n"));
 	}
 
-	return pci_register_driver(&mptspi_driver);
+	error = pci_register_driver(&mptspi_driver);
+	if (error)
+		spi_release_transport(mptspi_transport_template);
+
+	return error;
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/