From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 12 Mar 2015 17:30:15 +0000 (-0500)
Subject: PCI: Fail pci_ioremap_bar() on unassigned resources
X-Git-Tag: omap-for-v4.1/fixes-rc1~172^2~3^3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=646c0282df04265f77ebd5ad3beae671e59acd5b;p=pandora-kernel.git

PCI: Fail pci_ioremap_bar() on unassigned resources

Make pci_ioremap_bar() fail if we're trying to map a BAR that hasn't been
assigned.

Normally pci_enable_device() will fail if a BAR hasn't been assigned, but a
driver can successfully call pci_enable_device_io() even if a memory BAR
hasn't been assigned.  That driver should not be able to use
pci_ioremap_bar() to map that unassigned memory BAR.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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