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-rw-r--r--erts/emulator/beam/erl_async.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c
index f2ca193ace..831e29d8a2 100644
--- a/erts/emulator/beam/erl_async.c
+++ b/erts/emulator/beam/erl_async.c
@@ -612,8 +612,8 @@ long driver_async(ErlDrvPort ix, unsigned int* key,
sched_id = 1;
#endif
- prt = erts_drvport2port(ix, NULL);
- if (!prt)
+ prt = erts_drvport2port(ix);
+ if (prt == ERTS_INVALID_ERL_DRV_PORT)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));