From: Greg Thelen <gthelen@google.com>
Date: Sun, 17 Apr 2011 15:20:32 +0000 (-0700)
Subject: PCI: handle positive error codes
X-Git-Tag: v3.0-rc1~326^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34e3207205ef492451cc5c53694d4772a9728b9f;p=pandora-kernel.git

PCI: handle positive error codes

Callers expect pci_user_{read,write}_config_*() to indicate errors by
returning negative values.  Prior to this change, the indicated routines
could return positive error codes (e.g. PCIBIOS_BAD_REGISTER_NUMBER)
which callers would mistakenly interpret as success.

This change converts any non-zero return from the mentioned routines
into unambiguous negative value return codes.

Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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