[PATCH v3] PCI: Data corruption happening due to race condition

[Hari Vyas <hari.vyas@broadcom.com>]

Changes in v3:
	As per review comments from Lukas Wunner <lukas@wunner.de>,
	squashed 3 commits to single commit. Without this build breaks.
	Also clubbed set and clear function for is_added bits to a
	single assign function. This optimizes code and reduce LoC.
	Removed one wrongly added blank line in pci.c
	 
Changes in v2:
        To avoid race condition while updating is_added and is_busmaster
        bits, is_added is moved to a private flag variable.
        is_added updation is handled in atomic manner also.

Hari Vyas (1):
  PCI: Data corruption happening due to race condition

 arch/powerpc/kernel/pci-common.c          |  4 +++-
 arch/powerpc/platforms/powernv/pci-ioda.c |  3 ++-
 arch/powerpc/platforms/pseries/setup.c    |  3 ++-
 drivers/pci/bus.c                         |  6 +++---
 drivers/pci/hotplug/acpiphp_glue.c        |  2 +-
 drivers/pci/pci.h                         | 11 +++++++++++
 drivers/pci/probe.c                       |  4 ++--
 drivers/pci/remove.c                      |  5 +++--
 include/linux/pci.h                       |  1 -
 9 files changed, 27 insertions(+), 12 deletions(-)

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1.9.1