diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-04-05 15:14:22 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-06 18:54:13 -0700 |
| commit | b7291c361b7c8ebaa87ceab1f4437a4c6c87cc60 (patch) | |
| tree | 819167f4eabd750a0529117aa82c1ed68236ff32 | |
| parent | ce914633b5f2adddf54da73c2f2c27505cffe087 (diff) | |
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 f30acaa8403..d6ceb2e45c5 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3659,7 +3659,7 @@ 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); |