| From | Luis Henriques <> | Subject | [PATCH 75/88] e1000e: fix pci-device enable-counter balance | Date | Thu, 14 Mar 2013 10:36:08 +0000 |
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3.5.7.8 -stable review patch. If anyone has any objections, please let me know.
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From: Konstantin Khlebnikov <khlebnikov@openvz.org>
commit 4e0855dff094b0d56d6b5b271e0ce7851cc1e063 upstream.
This patch removes redundant and unbalanced pci_disable_device() from __e1000_shutdown(). pci_clear_master() is enough, device can go into suspended state with elevated enable_cnt.
Bug was introduced in commit 23606cf5d1192c2b17912cb2ef6e62f9b11de133 ("e1000e / PCI / PM: Add basic runtime PM support (rev. 4)") in v2.6.35
Cc: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Borislav Petkov <bp@suse.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 2c78ef0..2ea52ce 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -5560,7 +5560,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake, */ e1000e_release_hw_control(adapter); - pci_disable_device(pdev); + pci_clear_master(pdev); return 0; } -- 1.8.1.2
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