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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2013-04-30 10:44:54 +0300 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2013-04-30 08:49:19 -0700 |
| commit | e5f66eafe5a4c678965a2138b92b645c2c0c4d10 (patch) | |
| tree | cdeb95f80df8b5f282d5c5301f59f455664ea44e /drivers/pci/msi.c | |
| parent | Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| download | linux-dev-e5f66eafe5a4c678965a2138b92b645c2c0c4d10.tar.xz linux-dev-e5f66eafe5a4c678965a2138b92b645c2c0c4d10.zip | |
PCI: Set ->mask_pos correctly
The "+" operation has higher precedence than "?:" and ->msi_cap is
always non-zero here so the original statement is equivalent to:
entry->mask_pos = PCI_MSI_MASK_64;
Which wasn't the intent.
[bhelgaas: my fault from 78b5a310ce]
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index d40bed726769..2c1075213bec 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -563,8 +563,10 @@ static int msi_capability_init(struct pci_dev *dev, int nvec) entry->msi_attrib.default_irq = dev->irq; /* Save IOAPIC IRQ */ entry->msi_attrib.pos = dev->msi_cap; - entry->mask_pos = dev->msi_cap + (control & PCI_MSI_FLAGS_64BIT) ? - PCI_MSI_MASK_64 : PCI_MSI_MASK_32; + if (control & PCI_MSI_FLAGS_64BIT) + entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_64; + else + entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_32; /* All MSIs are unmasked by default, Mask them all */ if (entry->msi_attrib.maskbit) pci_read_config_dword(dev, entry->mask_pos, &entry->masked); |