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-rw-r--r--erts/emulator/beam/erl_threads.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index 0e759a1eec..1dc3ffeb3c 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -2138,6 +2138,7 @@ erts_no_atomic_read_bset(erts_no_atomic_t *var,
erts_aint_t set)
{
erts_aint_t old = *var;
+ *var &= ~mask;
*var |= (mask & set);
return old;
}
@@ -2235,6 +2236,7 @@ erts_no_atomic32_read_bset(erts_no_atomic32_t *var,
erts_aint32_t set)
{
erts_aint32_t old = *var;
+ *var &= ~mask;
*var |= (mask & set);
return old;
}