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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 18:44:38 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 18:44:38 -0700
commit2bb590b80b2f057d9277adc86a0858843d15fca6 (patch)
tree5938e2c0bc92c575a458f3118cf3a6b6e65d3d6c /drivers/pci/pci-driver.c
parentc0e03084000a54d75d1440cce5b71aa9db5a5836 (diff)
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
Merge 3.9-rc7 into staging-next
We want these fixes here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci/pci-driver.c')
-rw-r--r--drivers/pci/pci-driver.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 1fa1e482a99..79277fb36c6 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -390,9 +390,10 @@ static void pci_device_shutdown(struct device *dev)
/*
* Turn off Bus Master bit on the device to tell it to not
- * continue to do DMA
+ * continue to do DMA. Don't touch devices in D3cold or unknown states.
*/
- pci_clear_master(pci_dev);
+ if (pci_dev->current_state <= PCI_D3hot)
+ pci_clear_master(pci_dev);
}
#ifdef CONFIG_PM