svcrdma: Fix pcl_for_each_segment for empty chunks

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/sunrpc/svc_rdma_pcl.h"
                    ],
                    "versions": [
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "1e2e3481e39103a386b86be1c33eaef97cbdf16e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "3a78b841879c2a3243f74edc514236fb2907167f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "06d0390c37fa6714624af771bd72bbf1a7ed9bb1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "9c5a03c3dc505c0295339b0a1b9e4fe36447e482",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "a1c954ca4977a4e6ec73ef92fe48073ec54f9fc8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "6d33a7e6bf6c6b293a266a617201285a1ad32c56",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78147ca8b4a9b6cf0e597ddd6bf17959e08376c2",
                            "lessThan": "b7713a784c59515d0aba558c8f5df6a0164dd3a9",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/sunrpc/svc_rdma_pcl.h"
                    ],
                    "versions": [
                        {
                            "version": "5.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "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": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }