fix corner

RidRisR · RidRisR · commit 7ec490543270 · 2024-06-18T18:05:06.000+08:00
diff --git a/br/pkg/utils/backoff.go b/br/pkg/utils/backoff.go
@@ -192,7 +192,7 @@ func (bo *importerBackoffer) NextBackoff(err error) time.Duration {
 				bo.delayTime = 2 * bo.delayTime
 				bo.attempt--
 			case codes.Canceled:
-				if isGRPCCancel(err) {
+				if isGRPCCancel(lastErr) {
 					bo.delayTime = 2 * bo.delayTime
 					bo.attempt--
 				} else {
