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ethtool: potential NULL dereference in strset_prepare_data()

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Smatch complains that the NULL checking isn't done consistently:

    net/ethtool/strset.c:253 strset_prepare_data()
    error: we previously assumed 'dev' could be null (see line 233)

It looks like there is a missing return on this path.

Fixes: 71921690f9 ("ethtool: provide string sets with STRSET_GET request")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2020-01-08 08:42:36 +03:00 committed by David S. Miller
parent d97772dbd7
commit ac9c41d5a0
1 changed files with 1 additions and 0 deletions
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net/ethtool/strset.c
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@ -239,6 +239,7 @@ static int strset_prepare_data(const struct ethnl_req_info *req_base,
return -EINVAL;
}
}
return 0;
}
ret = ethnl_ops_begin(dev);