1 files changed, 6 insertions, 2 deletions
diff --git a/vendor/google.golang.org/grpc/rpc_util.go b/vendor/google.golang.org/grpc/rpc_util.go
index b7723aa09..a4b6bc687 100644
--- a/vendor/google.golang.org/grpc/rpc_util.go
+++ b/vendor/google.golang.org/grpc/rpc_util.go
@@ -640,14 +640,18 @@ func encode(c baseCodec, msg any) ([]byte, error) {
 	return b, nil
 }
 
-// compress returns the input bytes compressed by compressor or cp.  If both
-// compressors are nil, returns nil.
+// compress returns the input bytes compressed by compressor or cp.
+// If both compressors are nil, or if the message has zero length, returns nil,
+// indicating no compression was done.
 //
 // TODO(dfawley): eliminate cp parameter by wrapping Compressor in an encoding.Compressor.
 func compress(in []byte, cp Compressor, compressor encoding.Compressor) ([]byte, error) {
 	if compressor == nil && cp == nil {
 		return nil, nil
 	}
+	if len(in) == 0 {
+		return nil, nil
+	}
 	wrapErr := func(err error) error {
 		return status.Errorf(codes.Internal, "grpc: error while compressing: %v", err.Error())
 	}