runtime: zero d.free field

Not programming in Go anymore:
have to clear fields in local variables.

R=ken2
CC=golang-dev
https://golang.org/cl/7002053

diff --git a/src/pkg/runtime/cgocall.c b/src/pkg/runtime/cgocall.c
index 7b540951b3db730308edf5f338aadecad0a6cd40..ed859c07b9320736df33ce008e647680f56909de 100644 (file)
--- a/src/pkg/runtime/cgocall.c
+++ b/src/pkg/runtime/cgocall.c
@@ -132,6 +132,7 @@ runtime·cgocall(void (*fn)(void*), void *arg)
                d.link = g->defer;
                d.argp = (void*)-1;  // unused because unlockm never recovers
                d.special = true;
+               d.free = false;
                g->defer = &d;
        }
 
@@ -237,6 +238,7 @@ runtime·cgocallbackg(void (*fn)(void), void *arg, uintptr argsize)
        d.link = g->defer;
        d.argp = (void*)-1;  // unused because unwindm never recovers
        d.special = true;
+       d.free = false;
        g->defer = &d;
 
        if(raceenabled)