*: fix lock in CheckAndPutRegion (#5768)

ref #5615, ref #5648 Signed-off-by: Ryan Leung <[email protected]>
tikv · Dec 8, 2022 · 8c5c666 · 8c5c666
1 parent 1b363d8
commit 8c5c666
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/server/core/region.go b/server/core/region.go
@@ -759,6 +759,7 @@ func (r *RegionsInfo) CheckAndPutRegion(region *RegionInfo) []*RegionInfo {
 	if err != nil {
 		log.Debug("region is stale", zap.Stringer("origin", origin.GetMeta()), errs.ZapError(err))
 		// return the state region to delete.
+		r.t.Unlock()
 		return []*RegionInfo{region}
 	}
 	origin, overlaps, rangeChanged := r.setRegionLocked(region, true, ols...)