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authorWu Fengguang <fengguang.wu@intel.com>2008-11-26 19:59:06 +0800
committerAvi Kivity <avi@redhat.com>2008-12-31 16:55:04 +0200
commitb82091824ee4970adf92d5cd6d57b12273171625 (patch)
treea083204512430d1a1ca91bb5b698b4009a3f350a /virt
parent6692cef30b7caf7525ae99670cddbaf28f1f9d40 (diff)
downloadlinux-b82091824ee4970adf92d5cd6d57b12273171625.tar.gz
KVM: Prevent trace call into unloaded module text
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>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_trace.c1
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);