[SCSI] aacraid: Correct sa platform support. (Was: [Bug 8469] Bad EIP value on pentium3 SMP kernel-2.6.21.1)

http://bugzilla.kernel.org/show_bug.cgi?id=8469

As discussed in the bugzilla outlined below, we have an sa based
(Mustang) RAID adapter on the system, a Dell PERC2/QC. Affected
controllers are HP NetRAID, Adaptec AAC-364, Dell PERC2/QC or Adaptec
5400S. This problem  coincides with the introduction of the adapter_comm
and adapter_deliver platform functions (Message [PATCH 1/4] aacraid:
rework communication support code, January 23 2007, which initially
migrated to 2.6.21)

The panic occurs with an uninitialized adapter_deliver platform function
pointer. The enclosed patch, unmodified as tested by Rainer, solves the
problem.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index f4b5e9742ab0..85b91bc578c9 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -5,7 +5,7 @@
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
- * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -257,6 +257,11 @@ static void aac_sa_start_adapter(struct aac_dev *dev)
                         NULL, NULL, NULL, NULL, NULL);
 }
 
+static int aac_sa_restart_adapter(struct aac_dev *dev, int bled)
+{
+        return -EINVAL;
+}
+
 /**
  *      aac_sa_check_health
  *      @dev: device to check if healthy
@@ -366,7 +371,9 @@ int aac_sa_init(struct aac_dev *dev)
         dev->a_ops.adapter_notify = aac_sa_notify_adapter;
         dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
         dev->a_ops.adapter_check_health = aac_sa_check_health;
+        dev->a_ops.adapter_restart = aac_sa_restart_adapter;
         dev->a_ops.adapter_intr = aac_sa_intr;
+        dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
         dev->a_ops.adapter_ioremap = aac_sa_ioremap;
 
         /*