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-rw-r--r--erts/emulator/beam/io.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index edf4a28784..0f86d8e41d 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -6129,7 +6129,7 @@ driver_pdl_create(ErlDrvPort dp)
return NULL;
pdl = erts_alloc(ERTS_ALC_T_PORT_DATA_LOCK,
sizeof(struct erl_drv_port_data_lock));
- erts_mtx_init(&pdl->mtx, "port_data_lock");
+ erts_mtx_init_x(&pdl->mtx, "port_data_lock", pp->common.id, 1);
pdl_init_refc(pdl);
erts_port_inc_refc(pp);
pdl->prt = pp;
@@ -7166,7 +7166,7 @@ char *driver_dl_error(void)
#define ERL_DRV_SYS_INFO_SIZE(LAST_FIELD) \
- (((size_t) &((ErlDrvSysInfo *) 0)->LAST_FIELD) \
+ (offsetof(ErlDrvSysInfo, LAST_FIELD) \
+ sizeof(((ErlDrvSysInfo *) 0)->LAST_FIELD))
void