Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 15/21] e1000e: fix pci-device enable-counter balance | Date | Tue, 12 Mar 2013 15:44:17 -0700 |
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3.0-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
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Bruce Allan <bruce.w.allan@intel.com> 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/net/e1000e/netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -5330,7 +5330,7 @@ static int __e1000_shutdown(struct pci_d */ e1000e_release_hw_control(adapter); - pci_disable_device(pdev); + pci_clear_master(pdev); return 0; }
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