From bb26c5b2b89d932f617fa415a715b2bb259a42bc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 21 Aug 2024 07:38:09 +0200 Subject: Adding upstream version 6.10.6. Signed-off-by: Daniel Baumann --- kernel/padata.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'kernel/padata.c') diff --git a/kernel/padata.c b/kernel/padata.c index 53f4bc9127..0fa6c28954 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -517,6 +517,13 @@ void __init padata_do_multithreaded(struct padata_mt_job *job) ps.chunk_size = max(ps.chunk_size, job->min_chunk); ps.chunk_size = roundup(ps.chunk_size, job->align); + /* + * chunk_size can be 0 if the caller sets min_chunk to 0. So force it + * to at least 1 to prevent divide-by-0 panic in padata_mt_helper().` + */ + if (!ps.chunk_size) + ps.chunk_size = 1U; + list_for_each_entry(pw, &works, pw_list) if (job->numa_aware) { int old_node = atomic_read(&last_used_nid); -- cgit v1.2.3