drm/pagemap: dma-unmap pages before handling migration errors

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/drm_pagemap.c"
                    ],
                    "versions": [
                        {
                            "version": "f86ad0ed620cb3c91ec7d5468e93ac68d727539d",
                            "lessThan": "e4331c6644db85bc6ceb470bd84bcf371b6dbfa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f86ad0ed620cb3c91ec7d5468e93ac68d727539d",
                            "lessThan": "415f5a755cec5164b149037bf294e270b78d36c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f86ad0ed620cb3c91ec7d5468e93ac68d727539d",
                            "lessThan": "9e6372ec2a3990662ae0a67f56ac0aee19848d5b",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/drm_pagemap.c"
                    ],
                    "versions": [
                        {
                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }