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genirq/msi: Use kmemdup_array() instead of kmemdup()

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Let kmemdup_array() take care about sizing instead of doing it open coded.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240828072219.1249250-1-ruanjinjie@huawei.com
This commit is contained in:
Jinjie Ruan 2024-08-28 15:22:19 +08:00 committed by Thomas Gleixner
parent eb29369fa5
commit bf1e0fb69a
1 changed files with 1 additions and 1 deletions
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kernel/irq/msi.c
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@ -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;