From: Mehdi Ben Hadj Khelifa <mehdi.benhadjkhelifa@gmail.com>
Date: Sat, 18 Oct 2025 20:11:48 +0000 (+0100)
Subject: mm/vmalloc: use kmalloc_array() instead of kmalloc()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f304188e0c12d4e10577a16d4ffc6ac773533307;p=users%2Fjedix%2Flinux-maple.git

mm/vmalloc: use kmalloc_array() instead of kmalloc()

The number of NUMA nodes (nr_node_ids) is bounded, so overflow is not a
practical concern here.  However, using kmalloc_array() better reflects
the intent to allocate an array of unsigned ints, and improves consistency
with other NUMA-related allocations.

No functional change intended.

Link: https://lkml.kernel.org/r/20251018201207.27441-1-mehdi.benhadjkhelifa@gmail.com
Signed-off-by: Mehdi Ben Hadj Khelifa <mehdi.benhadjkhelifa@gmail.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Khalid Aziz <khalid@kernel.org>
Cc: David Hunter <david.hunter.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 091a07f6d925..adde450ddf5e 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -5140,7 +5140,7 @@ static int vmalloc_info_show(struct seq_file *m, void *p)
 	unsigned int *counters;
 
 	if (IS_ENABLED(CONFIG_NUMA))
-		counters = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
+		counters = kmalloc_array(nr_node_ids, sizeof(unsigned int), GFP_KERNEL);
 
 	for_each_vmap_node(vn) {
 		spin_lock(&vn->busy.lock);