[dpdk-dev] [PATCH] net/ice: fix wild pointer

[Wang ShougangX <shougangx.wang@intel.com>]

To avoid wild pointer, pointers should be set to NULL after free them.

Fixes: 1a2fc1799f09 ("net/ice: reject duplicated flow for flow director")
Fixes: 84dc7a95a2d3 ("net/ice: enable flow director engine")
Cc: stable@dpdk.org

Signed-off-by: Wang ShougangX <shougangx.wang@intel.com>
---
 drivers/net/ice/ice_fdir_filter.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/ice_fdir_filter.c b/drivers/net/ice/ice_fdir_filter.c
index 736ccd54e..d2c754f07 100644
--- a/drivers/net/ice/ice_fdir_filter.c
+++ b/drivers/net/ice/ice_fdir_filter.c
@@ -403,6 +403,9 @@ ice_fdir_release_filter_list(struct ice_pf *pf)
 		rte_free(fdir_info->hash_map);
 	if (fdir_info->hash_table)
 		rte_hash_free(fdir_info->hash_table);
+
+	fdir_info->hash_map = NULL;
+	fdir_info->hash_table = NULL;
 }
 
 /*
@@ -525,10 +528,13 @@ ice_fdir_prof_free(struct ice_hw *hw)
 
 	for (ptype = ICE_FLTR_PTYPE_NONF_IPV4_UDP;
 	     ptype < ICE_FLTR_PTYPE_MAX;
-	     ptype++)
+	     ptype++) {
 		rte_free(hw->fdir_prof[ptype]);
+		hw->fdir_prof[ptype] = NULL;
+	}
 
 	rte_free(hw->fdir_prof);
+	hw->fdir_prof = NULL;
 }
 
 /* Remove a profile for some filter type */
-- 
2.17.1