From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date: Fri, 5 Feb 2010 12:14:04 +0000 (+0100)
Subject: cciss: Make cciss_seq_show handle holes in the h->drv[] array
X-Git-Tag: v2.6.33-rc8~9^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=531c2dc70d339c5dfa8c3eb628c3459dc6f3a075;p=pandora-kernel.git

cciss: Make cciss_seq_show handle holes in the h->drv[] array

It is possible (and expected) for there to be holes in the h->drv[]
array, that is, some elements may be NULL pointers.  cciss_seq_show
needs to be made aware of this possibility to avoid an Oops.

To reproduce the Oops which this fixes:

1) Create two "arrays" in the Array Configuratino Utility and
   several logical drives on each array.
2) cat /proc/driver/cciss/cciss* in an infinite loop
3) delete some of the logical drives in the first "array."

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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