aboutsummaryrefslogtreecommitdiff
path: root/hw/pci/pci_host.c
diff options
context:
space:
mode:
authorPeter Maydell <peter.maydell@linaro.org>2014-03-17 16:00:32 +0000
committerMichael Tokarev <mjt@tls.msk.ru>2014-03-27 19:22:49 +0400
commitac43fa508cc1cfe6d6f67c8eb99dc012e52c164e (patch)
tree62817b868442eb4de0dd3605c915624de3afaffe /hw/pci/pci_host.c
parent6d55574a656f3a533a370156aaefedcf7980d4d8 (diff)
downloadqemu-ac43fa508cc1cfe6d6f67c8eb99dc012e52c164e.zip
qemu-ac43fa508cc1cfe6d6f67c8eb99dc012e52c164e.tar.gz
qemu-ac43fa508cc1cfe6d6f67c8eb99dc012e52c164e.tar.bz2
hw/pci/pci_host.c: Avoid shifting left into sign bit
Add U suffix to avoid undefined behaviour. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'hw/pci/pci_host.c')
-rw-r--r--hw/pci/pci_host.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c
index 77c7d1f..3e26f92 100644
--- a/hw/pci/pci_host.c
+++ b/hw/pci/pci_host.c
@@ -142,8 +142,9 @@ static uint64_t pci_host_data_read(void *opaque,
{
PCIHostState *s = opaque;
uint32_t val;
- if (!(s->config_reg & (1 << 31)))
+ if (!(s->config_reg & (1U << 31))) {
return 0xffffffff;
+ }
val = pci_data_read(s->bus, s->config_reg | (addr & 3), len);
PCI_DPRINTF("read addr " TARGET_FMT_plx " len %d val %x\n",
addr, len, val);