diff options
| author | Wu Fengguang <fengguang.wu@intel.com> | 2009-03-23 17:51:27 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-02 10:57:08 -0700 |
| commit | 3b3d3c98c95ea353d95299016973b99f569f6c64 (patch) | |
| tree | ef6528f164ea8682c801767a16ef36bbb7f8243e | |
| parent | 4cb5b1f5b577184ef9d7b23b8146a25700f6d555 (diff) | |
KVM: Prevent trace call into unloaded module text
(cherry picked from b82091824ee4970adf92d5cd6d57b12273171625)
Add marker_synchronize_unregister() before module unloading.
This prevents possible trace calls into unloaded module text.
Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | virt/kvm/kvm_trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/virt/kvm/kvm_trace.c b/virt/kvm/kvm_trace.c index 41dcc845f78..f5987444644 100644 --- a/virt/kvm/kvm_trace.c +++ b/virt/kvm/kvm_trace.c @@ -252,6 +252,7 @@ void kvm_trace_cleanup(void) struct kvm_trace_probe *p = &kvm_trace_probes[i]; marker_probe_unregister(p->name, p->probe_func, p); } + marker_synchronize_unregister(); relay_close(kt->rchan); debugfs_remove(kt->lost_file); |