gs: fix dangleing pointer crash with "lock" (ghostscript Bug 697204)

2017-03-13 18:56:52 +01:00 · 2017-03-13 18:56:52 +01:00 · 9b2d3ed37a
parent 59ed389a6e
commit 9b2d3ed37a
1 changed files with 1 additions and 0 deletions
--- a/sys/src/cmd/gs/src/zcontext.c
+++ b/sys/src/cmd/gs/src/zcontext.c
@ -953,6 +953,7 @@ zlock(i_ctx_t *i_ctx_p)
 	return_error(e_VMerror);
    plock->holder_index = 0;
    plock->waiting.head_index = plock->waiting.tail_index = 0;
+    plock->scheduler = NULL;
    push(1);
    make_istruct(op, a_all, plock);
    return 0;