From: Kashyap, Desai <kashyap.desai@lsi.com>
Date: Wed, 2 Sep 2009 06:14:19 +0000 (+0530)
Subject: [SCSI] mptsas : NULL pointer on big endian systems causing Expander not to tear off
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f44fd18198eb26b62ba86b17016e9441ce95fc71;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

[SCSI] mptsas : NULL pointer on big endian systems causing Expander not to tear off

On Big endian system kernel will crash due to address translation
is not handle properly.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f744f0fc9491..02a18dfcd52a 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -3314,6 +3314,7 @@ mptsas_send_expander_event(struct fw_event_work *fw_event)
 	expander_data = (MpiEventDataSasExpanderStatusChange_t *)
 	    fw_event->event_data;
 	memcpy(&sas_address, &expander_data->SASAddress, sizeof(__le64));
+	sas_address = le64_to_cpu(sas_address);
 	port_info = mptsas_find_portinfo_by_sas_address(ioc, sas_address);
 
 	if (expander_data->ReasonCode == MPI_EVENT_SAS_EXP_RC_ADDED) {