The mpt2sas driver crashes if the BIOS does not set up at least one
memory I/O resource. This failure can happen if the device is too
slow to respond during POST and is missed by the BIOS, but Linux
then detects the device later in the boot process.
This patch aborts initialization and prints a warning if no memory I/O
resources are found.
Signed-off-by: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx>
Tested-by: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/mpt2sas/mpt2sas_base.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c
b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 11248de..15c9504 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -6,6 +6,8 @@
* Copyright (C) 2007-2014 LSI Corporation
* Copyright (C) 20013-2014 Avago Technologies
* (mailto: MPT-FusionLinux.pdl@xxxxxxxxxxxxx)
+ * Copyright (C) 2015 Raptor Engineering
+ * (mailto: support@xxxxxxxxxxxxxxxxxxxxxxxxx)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -1582,6 +1584,13 @@ mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER
*ioc)
}
}
+ if (ioc->chip == NULL) {
+ printk(MPT2SAS_ERR_FMT "unable to map "
+ "adapter memory (resource not found)!\n", ioc->name);
+ r = -EINVAL;
+ goto out_fail;
+ }
+
_base_mask_interrupts(ioc);
r = _base_get_ioc_facts(ioc, CAN_SLEEP);
--
1.7.9.5
--
Timothy Pearson
Raptor Engineering
+1 (415) 727-8645
http://www.raptorengineeringinc.com
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