net: hsr: free learned nodes on device setup failure

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/hsr/hsr_device.c"
                    ],
                    "versions": [
                        {
                            "version": "81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8",
                            "lessThan": "e691eee886871b933d772ffc76d66c80b4c0a25e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8",
                            "lessThan": "0a340ffd96943a49a78e367efac9517ca767d99b",
                            "status": "affected",
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                        },
                        {
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                            "status": "affected",
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                        },
                        {
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                            "lessThan": "65702339b3e9fd792f65d4b740928798194d86ce",
                            "status": "affected",
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                        },
                        {
                            "version": "81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8",
                            "lessThan": "49b01f2939abc676a6f9a118f07a10110ee5f683",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8",
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                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/hsr/hsr_device.c"
                    ],
                    "versions": [
                        {
                            "version": "3.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }