Remove unnecessary initialization for the variable 'next'.  This fixes
the clang scan warning: Value stored to 'next' during its
initialization is never read [deadcode.DeadStores]

Link: https://lkml.kernel.org/r/20220612182320.160651-1-gautammenghani201@gmail.comSigned-off-by: NGautam Menghani <gautammenghani201@gmail.com>
Reviewed-by: NDavid Hildenbrand <david@redhat.com>
Reviewed-by: NMuchun Song <songmuchun@bytedance.com>
Reviewed-by: NJoao Martins <joao.m.martins@oracle.com>
Reviewed-by: NOscar Salvador <osalvador@suse.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>