From: Gavin Shan <gwshan@linux.vnet.ibm.com>
Date: Wed, 21 May 2014 05:23:30 +0000 (+1000)
Subject: PCI: Fix return value from pci_user_{read,write}_config_*()
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~38^2~5^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d97ffe236894856d08146390ef3fbe6448a8ac2b;p=pandora-kernel.git

PCI: Fix return value from pci_user_{read,write}_config_*()

The PCI user-space config accessors pci_user_{read,write}_config_*() return
negative error numbers, which were introduced by commit 34e3207205ef
("PCI: handle positive error codes").  That patch converted all positive
error numbers from platform-specific PCI config accessors to -EINVAL, which
means the callers don't know anything about the specific cause of the
failure.

The patch fixes the issue by converting the positive PCIBIOS_* error values
to generic negative error numbers with pcibios_err_to_errno().

[bhelgaas: changelog]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Thelen <gthelen@google.com>
---

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