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authorjing zhang <zj.barak@gmail.com>2010-03-13 15:00:45 +0800
committerAvi Kivity <avi@redhat.com>2010-05-17 12:15:36 +0300
commitd57e2c0740bbdd768dcbafe58cf62174f31d7c2d (patch)
tree50ac4407800ec7660f070539d2ac89854280d6ae /virt/kvm
parenta87fa35514bcf17aeca97245574e3f735cec9074 (diff)
downloadlinux-d57e2c0740bbdd768dcbafe58cf62174f31d7c2d.tar.gz
KVM: fix assigned_device_enable_host_msix error handling
Free IRQ's and disable MSIX upon failure.

Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Jing Zhang <zj.barak@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm')
-rw-r--r--virt/kvm/assigned-dev.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index 02ff2b19dbe2..4d10b1e047f4 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -316,12 +316,16 @@ static int assigned_device_enable_host_msix(struct kvm *kvm,
 				kvm_assigned_dev_intr, 0,
 				"kvm_assigned_msix_device",
 				(void *)dev);
-		/* FIXME: free requested_irq's on failure */
 		if (r)
-			return r;
+			goto err;
 	}
 
 	return 0;
+err:
+	for (i -= 1; i >= 0; i--)
+		free_irq(dev->host_msix_entries[i].vector, (void *)dev);
+	pci_disable_msix(dev->dev);
+	return r;
 }
 
 #endif