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| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-04-05 15:14:22 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-06 18:57:26 -0700 |
| commit | d3f891a0ab86ea6b43bd2133a9fac62e5b3581c0 (patch) | |
| tree | 77792115aa44067ebf0eea9a46dbf493377af405 | |
| parent | 9dcd32d499c30c31e9e634e4a54bb1f16ee84da4 (diff) | |
| download | lwn-d3f891a0ab86ea6b43bd2133a9fac62e5b3581c0.tar.gz lwn-d3f891a0ab86ea6b43bd2133a9fac62e5b3581c0.zip | |
PCI: Fix incorrect vgaarb conditional in WARN_ON()
commit 67ebd8140dc8923c65451fa0f6a8eee003c4dcd3 upstream.
3448a19da479 "vgaarb: use bridges to control VGA routing where possible"
added the "flags & PCI_VGA_STATE_CHANGE_DECODES" condition to an existing
WARN_ON(), but used bitwise AND (&) instead of logical AND (&&), so the
condition is never true. Replace with logical AND.
Found by Coverity (CID 142811).
Fixes: 3448a19da479 "vgaarb: use bridges to control VGA routing where possible"
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: David Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 33bb970980d2..ed1b6db25b03 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4102,7 +4102,7 @@ int pci_set_vga_state(struct pci_dev *dev, bool decode, u16 cmd; int rc; - WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) & (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); + WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) && (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); /* ARCH specific VGA enables */ rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); |