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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-02-04 01:57:22 +0100 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-02-04 17:20:39 -0800 |
| commit | 144a76bc885ef4852601c66595326e59f12877f8 (patch) | |
| tree | 87492fce6e91304467c7e2c9407b6795a80ba983 | |
| parent | ddb7c9d29fac34626aef2af9f19787a888e4ca9c (diff) | |
| download | linux-144a76bc885ef4852601c66595326e59f12877f8.tar.bz2 | |
PCI PM: Check if the state has been saved before trying to restore it
Check if the standard configuration registers of a PCI device have
been saved during suspend before trying to restore them during
resume.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-By: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/pci/pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 48807556b47a..87c904233bf5 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1421,7 +1421,7 @@ int pci_restore_standard_config(struct pci_dev *dev) dev->current_state = PCI_D0; Restore: - return pci_restore_state(dev); + return dev->state_saved ? pci_restore_state(dev) : 0; } /** |