diff options
Diffstat (limited to 'rts/sm')
| -rw-r--r-- | rts/sm/MarkWeak.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/sm/MarkWeak.c b/rts/sm/MarkWeak.c index 691e56af5f..9a077b3d14 100644 --- a/rts/sm/MarkWeak.c +++ b/rts/sm/MarkWeak.c @@ -364,7 +364,7 @@ static void tidyThreadList (generation *gen) static void checkWeakPtrSanity(StgWeak *hd, StgWeak *tl) { StgWeak *w, *prev; - for (w = hd; w != NULL; prev = w, w = w->link) { + for (prev = NULL, w = hd; w != NULL; prev = w, w = w->link) { ASSERT(INFO_PTR_TO_STRUCT(UNTAG_CLOSURE((StgClosure*)w)->header.info)->type == WEAK || UNTAG_CLOSURE((StgClosure*)w)->header.info == &stg_DEAD_WEAK_info); checkClosure((StgClosure*)w); |