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-rw-r--r--erts/emulator/beam/erl_bif_ddll.c18
-rw-r--r--erts/emulator/beam/io.c24
2 files changed, 7 insertions, 35 deletions
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index b2d5722e9b..37d540b41b 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -1580,24 +1580,6 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
}
switch (dp->extended_marker) {
- case 0:
- /*
- * This may be an old driver that has been recompiled. If so,
- * at least the fields that existed in extended driver version
- * 1.0 should be zero. If not, a it is a bad driver. We cannot
- * be completely certain that this is a valid driver but this is
- * the best we can do with old drivers...
- */
- if (dp->major_version != 0
- || dp->minor_version != 0
- || dp->driver_flags != 0
- || dp->handle2 != NULL
- || dp->process_exit != NULL) {
- /* Old driver; needs to be recompiled... */
- res = ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
- goto error;
- }
- break;
case ERL_DRV_EXTENDED_MARKER:
if (ERL_DRV_EXTENDED_MAJOR_VERSION != dp->major_version
|| ERL_DRV_EXTENDED_MINOR_VERSION < dp->minor_version) {
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 1749cac66c..49cd0e5f53 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -4814,16 +4814,11 @@ static int
init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle)
{
drv->name = de->driver_name;
- if (de->extended_marker == ERL_DRV_EXTENDED_MARKER) {
- drv->version.major = de->major_version;
- drv->version.minor = de->minor_version;
- drv->flags = de->driver_flags;
- }
- else {
- drv->version.major = 0;
- drv->version.minor = 0;
- drv->flags = 0;
- }
+ ASSERT(de->extended_marker == ERL_DRV_EXTENDED_MARKER);
+ ASSERT(de->major_version >= 2);
+ drv->version.major = de->major_version;
+ drv->version.minor = de->minor_version;
+ drv->flags = de->driver_flags;
drv->handle = handle;
#ifdef ERTS_SMP
if (drv->flags & ERL_DRV_FLAG_USE_PORT_LOCKING)
@@ -4856,13 +4851,8 @@ init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle)
drv->ready_output = de->ready_output ? de->ready_output : no_ready_output_callback;
drv->timeout = de->timeout ? de->timeout : no_timeout_callback;
drv->ready_async = de->ready_async;
- if (de->extended_marker == ERL_DRV_EXTENDED_MARKER)
- drv->process_exit = de->process_exit;
- else
- drv->process_exit = NULL;
- if ((de->major_version >= 2
- || (de->major_version == 1 && de->minor_version >= 3)/*R13A*/)
- && de->stop_select)
+ drv->process_exit = de->process_exit;
+ if (de->stop_select)
drv->stop_select = de->stop_select;
else
drv->stop_select = no_stop_select_callback;