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authorTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>2010-03-15 22:13:30 +0900
committerAvi Kivity <avi@redhat.com>2010-05-17 12:15:53 +0300
commit6ce5a090a9a0ea4266a2cad058c69e2f27201e11 (patch)
treeae8223dc3c73309fb34890b735bb4a0d75caafdc /virt/kvm/coalesced_mmio.c
parent31299944584fd62df8b0cfa30ad2c56f445b8cf2 (diff)
downloadlinaro-lsk-6ce5a090a9a0ea4266a2cad058c69e2f27201e11.tar.gz
KVM: coalesced_mmio: fix kvm_coalesced_mmio_init()'s error handling
kvm_coalesced_mmio_init() keeps to hold the addresses of a coalesced mmio ring page and dev even after it has freed them. Also, if this function fails, though it might be rare, it seems to be suggesting the system's serious state: so we'd better stop the works following the kvm_creat_vm(). This patch clears these problems. We move the coalesced mmio's initialization out of kvm_create_vm(). This seems to be natural because it includes a registration which can be done only when vm is successfully created. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm/coalesced_mmio.c')
-rw-r--r--virt/kvm/coalesced_mmio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index b66001f8754..53850177163 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -120,8 +120,10 @@ int kvm_coalesced_mmio_init(struct kvm *kvm)
return ret;
out_free_dev:
+ kvm->coalesced_mmio_dev = NULL;
kfree(dev);
out_free_page:
+ kvm->coalesced_mmio_ring = NULL;
__free_page(page);
out_err:
return ret;