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| author |   Huang Ying <ying.huang@intel.com> | 2012-10-24 14:54:14 +0800 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2012-11-02 16:57:18 -0600 |
| commit | 3ff2de9ba1a2e22e548979dbcd46e999b22c93d8 (patch) | |
| tree | 1ef3bf252f317b6943654f36c985c8e32583e089 /drivers/pci/pci.c | |
| parent | PCI/PM: Fix deadlock when unbinding device if parent in D3cold (diff) | |
| download | linux-dev-3ff2de9ba1a2e22e548979dbcd46e999b22c93d8.tar.xz linux-dev-3ff2de9ba1a2e22e548979dbcd46e999b22c93d8.zip | |
PCI/PM: Resume device before shutdown
Some actions during shutdown need device to be in D0 state, such as
MSI shutdown etc, so resume device before shutdown.
Without this patch, a device may not be enumerated after a kexec
because the corresponding bridge is not in D0, so that
configuration space of the device is not accessible.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
CC: stable@vger.kernel.org # v3.6+
Diffstat (limited to 'drivers/pci/pci.c')
0 files changed, 0 insertions, 0 deletions