Fix signed / unsigned comparison

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 11e07b3902060c2b43423e56ff022449b72408dc..22ce7a504009aaed21c3fbead7520289715d8dbe 100644 (file)
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -1165,7 +1165,7 @@ _Unpickler_Read(UnpicklerObject *self, char **s, Py_ssize_t n)
             PyErr_Format(UnpicklingError, "Invalid frame length");
             return -1;
         }
-        if (frame_len < n) {
+        if ((Py_ssize_t) frame_len < n) {
             PyErr_Format(UnpicklingError, "Bad framing");
             return -1;
         }