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[Qemu-devel] [PATCH v2 06/10] msi: Guard msi_reset with msi_present


From: Jan Kiszka
Subject: [Qemu-devel] [PATCH v2 06/10] msi: Guard msi_reset with msi_present
Date: Thu, 10 May 2012 17:08:22 -0300

Signed-off-by: Jan Kiszka <address@hidden>
---
 hw/msi.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

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;
-- 
1.7.3.4




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