From: Jiri Kosina <jkosina@suse.cz>
Date: Thu, 6 Oct 2011 21:29:48 +0000 (-0700)
Subject: parport_pc: release IO region properly if unsupported ITE887x card is found
X-Git-Tag: v3.2-rc1~170^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9fdbdd062bfc187e2aa32f7880fa7e8ae717efdf;p=pandora-kernel.git

parport_pc: release IO region properly if unsupported ITE887x card is found

sio_ite_8872_probe() bails out if it detects no-parallel (1S, 2S) or
unknown card.

It doesn't call release_region() on the previously allocated resource
though.  This causes

  (a) leak of the resource
  (b) kernel oops when parport module is removed and /proc/ioports is read. This
      is because the string that has been associated to the IO port region
      is a static char array inside the already removed module.

Let's call release_region() properly before baling out.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Niels de Vos <ndevos@redhat.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Joe Krahn <krahn@niehs.nih.gov>
Signed-off-by: Andrew Morton <akpm@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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