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| author | Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> | 2010-03-15 22:13:30 +0900 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 12:15:53 +0300 |
| commit | 6ce5a090a9a0ea4266a2cad058c69e2f27201e11 (patch) | |
| tree | ae8223dc3c73309fb34890b735bb4a0d75caafdc /virt/kvm/coalesced_mmio.c | |
| parent | 31299944584fd62df8b0cfa30ad2c56f445b8cf2 (diff) | |
| download | linux-6ce5a090a9a0ea4266a2cad058c69e2f27201e11.tar.gz linux-6ce5a090a9a0ea4266a2cad058c69e2f27201e11.tar.bz2 linux-6ce5a090a9a0ea4266a2cad058c69e2f27201e11.zip | |
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.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c index b66001f8754c..53850177163f 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; |