From: Bjorn Helgaas Date: Sat, 5 Apr 2014 21:14:22 +0000 (-0600) Subject: PCI: Fix incorrect vgaarb conditional in WARN_ON() X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=67ebd8140dc8923c65451fa0f6a8eee003c4dcd3;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git PCI: Fix incorrect vgaarb conditional in WARN_ON() 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 Acked-by: Yinghai Lu Acked-by: David Airlie --- diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 7325d43bf030..39012831867e 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4125,7 +4125,7 @@ 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);