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flow_offload: action should not be NULL when it is referenced

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"action" should not be NULL when it is referenced.

Signed-off-by: gushengxian <13145886936@163.com>
Signed-off-by: gushengxian <gushengxian@yulong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
gushengxian 2021-06-26 04:56:06 -07:00 committed by David S. Miller
parent 3f2db25009
commit 9ea3e52c5b
1 changed files with 7 additions and 5 deletions
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12
include/net/flow_offload.h
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@ -319,12 +319,14 @@ flow_action_mixed_hw_stats_check(const struct flow_action *action,
if (flow_offload_has_one_action(action))
return true;
flow_action_for_each(i, action_entry, action) {
if (i && action_entry->hw_stats != last_hw_stats) {
NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported");
return false;
if (action) {
flow_action_for_each(i, action_entry, action) {
if (i && action_entry->hw_stats != last_hw_stats) {
NL_SET_ERR_MSG_MOD(extack, "Mixing HW stats types for actions is not supported");
return false;
}
last_hw_stats = action_entry->hw_stats;
}
last_hw_stats = action_entry->hw_stats;
}
return true;
}