Memory blocks referenced by new_state and old_state are never freed.
For efeatures there is no need to check pointer as free() can be called
with NULL parameter.

Fixes: 6042804cf6ec ("Change -k/-K options to use ETHTOOL_{G,S}FEATURES")

Cc: Michal Kubecek <mkube...@suse.cz>
Signed-off-by: Ivan Vecera <ivec...@redhat.com>
---
 ethtool.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/ethtool.c b/ethtool.c
index ab9b4577cbce..f2d568722272 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -2392,9 +2392,10 @@ static int do_sfeatures(struct cmd_context *ctx)
        int any_changed = 0, any_mismatch = 0;
        u32 off_flags_wanted = 0;
        u32 off_flags_mask = 0;
-       struct ethtool_sfeatures *efeatures;
+       struct ethtool_sfeatures *efeatures = NULL;
+       struct feature_state *old_state = NULL;
+       struct feature_state *new_state = NULL;
        struct cmdline_info *cmdline_features;
-       struct feature_state *old_state, *new_state;
        struct ethtool_value eval;
        unsigned int i, j;
        int err, rc;
@@ -2418,8 +2419,6 @@ static int do_sfeatures(struct cmd_context *ctx)
                memset(efeatures->features, 0,
                       FEATURE_BITS_TO_BLOCKS(defs->n_features) *
                       sizeof(efeatures->features[0]));
-       } else {
-               efeatures = NULL;
        }
 
        /* Generate cmdline_info for legacy flags and kernel-named
@@ -2578,9 +2577,11 @@ static int do_sfeatures(struct cmd_context *ctx)
        rc = 0;
 
 err:
+       free(new_state);
+       free(old_state);
        free(defs);
-       if (efeatures)
-               free(efeatures);
+       free(efeatures);
+
        return rc;
 }
 
-- 
2.26.2

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