From: Jan Glauber <jang@linux.vnet.ibm.com>
Date: Wed, 24 Oct 2012 10:38:35 +0000 (+0200)
Subject: s390/qdio: rework BUG's and WARN_ON's
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~29^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce1d801462ce75f9ba84e0bb32a05e1a7c881efe;p=pandora-kernel.git

s390/qdio: rework BUG's and WARN_ON's

Remove or replace BUG/BUG_ON where possible and convert WARN_ON
to WARN_ON_ONCE if they can occur freqeuently as pointed out by:
https://lkml.org/lkml/2012/9/27/461

Checks have been removed if:
- the error condition leads to a hardware error which gets logged
  and in most cases stops the device
- the error condition is a null pointer access
- the error condition is just pointless or already handled at
  another location

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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