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-rw-r--r--drivers/pci/msi.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d5f90d6383bc..604265c40853 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -831,7 +831,7 @@ int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec)
831 int status, maxvec; 831 int status, maxvec;
832 u16 msgctl; 832 u16 msgctl;
833 833
834 if (!dev->msi_cap) 834 if (!dev->msi_cap || dev->current_state != PCI_D0)
835 return -EINVAL; 835 return -EINVAL;
836 836
837 pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl); 837 pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl);
@@ -862,7 +862,7 @@ int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec)
862 int ret, nvec; 862 int ret, nvec;
863 u16 msgctl; 863 u16 msgctl;
864 864
865 if (!dev->msi_cap) 865 if (!dev->msi_cap || dev->current_state != PCI_D0)
866 return -EINVAL; 866 return -EINVAL;
867 867
868 pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl); 868 pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl);
@@ -955,7 +955,7 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
955 int status, nr_entries; 955 int status, nr_entries;
956 int i, j; 956 int i, j;
957 957
958 if (!entries || !dev->msix_cap) 958 if (!entries || !dev->msix_cap || dev->current_state != PCI_D0)
959 return -EINVAL; 959 return -EINVAL;
960 960
961 status = pci_msi_check_device(dev, nvec, PCI_CAP_ID_MSIX); 961 status = pci_msi_check_device(dev, nvec, PCI_CAP_ID_MSIX);