diff mbox

[v3,4/8] msi: Guard msi_reset with msi_present

Message ID c4827cb7fd331c18b97d1219a6f0c03c252812c2.1336747349.git.jan.kiszka@siemens.com
State New
Headers show

Commit Message

Jan Kiszka May 11, 2012, 2:42 p.m. UTC 
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 hw/msi.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/hw/msi.c b/hw/msi.c
index 5d6ceb6..b2903fc 100644
--- a/hw/msi.c
+++ b/hw/msi.c
@@ -191,6 +191,10 @@  void msi_reset(PCIDevice *dev)
     uint16_t flags;
     bool msi64bit;
 
+    if (!msi_present(dev)) {
+        return;
+    }
+
     flags = pci_get_word(dev->config + msi_flags_off(dev));
     flags &= ~(PCI_MSI_FLAGS_QSIZE | PCI_MSI_FLAGS_ENABLE);
     msi64bit = flags & PCI_MSI_FLAGS_64BIT;