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authorWu Fengguang <fengguang.wu@intel.com>2008-11-26 06:59:06 -0500
committerAvi Kivity <avi@redhat.com>2008-12-31 09:55:04 -0500
commitb82091824ee4970adf92d5cd6d57b12273171625 (patch)
treea083204512430d1a1ca91bb5b698b4009a3f350a
parent6692cef30b7caf7525ae99670cddbaf28f1f9d40 (diff)
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>
-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 41dcc845f78c..f59874446440 100644
--- a/virt/kvm/kvm_trace.c
+++ b/virt/kvm/kvm_trace.c
@@ -252,6 +252,7 @@ void kvm_trace_cleanup(void)
252 struct kvm_trace_probe *p = &kvm_trace_probes[i]; 252 struct kvm_trace_probe *p = &kvm_trace_probes[i];
253 marker_probe_unregister(p->name, p->probe_func, p); 253 marker_probe_unregister(p->name, p->probe_func, p);
254 } 254 }
255 marker_synchronize_unregister();
255 256
256 relay_close(kt->rchan); 257 relay_close(kt->rchan);
257 debugfs_remove(kt->lost_file); 258 debugfs_remove(kt->lost_file);