fix a warning

diff --git a/rts/sm/Evac.c b/rts/sm/Evac.c
index 2bbd5c9..26646fe 100644 (file)
--- a/rts/sm/Evac.c
+++ b/rts/sm/Evac.c
@@ -239,7 +239,7 @@ selector_chain:
     // In threaded mode, we'll use WHITEHOLE to lock the selector
     // thunk while we evaluate it.
     {
-       info_ptr = (StgInfoTable *)xchg((StgPtr)&p->header.info, (W_)&stg_WHITEHOLE_info);
+       info_ptr = xchg((StgPtr)&p->header.info, (W_)&stg_WHITEHOLE_info);
        if (info_ptr == (W_)&stg_WHITEHOLE_info) {
             do {
                 info_ptr = xchg((StgPtr)&p->header.info, (W_)&stg_WHITEHOLE_info);