1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index cd218b07c6f6..1ea3eb270de8 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1424,7 +1424,7 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa,
 {
         struct kvmgt_guest_info *info;
         struct kvm *kvm;
-        int ret;
+        int idx, ret;
         bool kthread = current->mm == NULL;
 
         if (!handle_valid(handle))
@@ -1436,8 +1436,10 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa,
         if (kthread)
                 use_mm(kvm->mm);
 
+        idx = srcu_read_lock(&kvm->srcu);
         ret = write ? kvm_write_guest(kvm, gpa, buf, len) :
                       kvm_read_guest(kvm, gpa, buf, len);
+        srcu_read_unlock(&kvm->srcu, idx);
 
         if (kthread)
                 unuse_mm(kvm->mm);