From bf1e0fb69a15fac4d6ee71d0e1c715147add986a Mon Sep 17 00:00:00 2001 From: Jinjie Ruan Date: Wed, 28 Aug 2024 15:22:19 +0800 Subject: [PATCH] genirq/msi: Use kmemdup_array() instead of kmemdup() Let kmemdup_array() take care about sizing instead of doing it open coded. Signed-off-by: Jinjie Ruan Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20240828072219.1249250-1-ruanjinjie@huawei.com --- kernel/irq/msi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 5fa0547ece0c..1c7e5159064c 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -82,7 +82,7 @@ static struct msi_desc *msi_alloc_desc(struct device *dev, int nvec, desc->dev = dev; desc->nvec_used = nvec; if (affinity) { - desc->affinity = kmemdup(affinity, nvec * sizeof(*desc->affinity), GFP_KERNEL); + desc->affinity = kmemdup_array(affinity, nvec, sizeof(*desc->affinity), GFP_KERNEL); if (!desc->affinity) { kfree(desc); return NULL; -- 2.51.0