Replace vzalloc() with vcalloc() in vmalloc_to_dma_addrs(). As noted in the kernel documentation [1], open-coded multiplication in allocator arguments is discouraged because it can lead to integer overflow. Use vcalloc() to gain built-in overflow protection, making memory allocation safer when calculating allocation size compared to explicit multiplication. [1]: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments Signed-off-by: Qianfeng Rong <rongqianfeng@xxxxxxxx> --- drivers/infiniband/hw/erdma/erdma_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c index 996860f49b2f..63cabb8a6d96 100644 --- a/drivers/infiniband/hw/erdma/erdma_verbs.c +++ b/drivers/infiniband/hw/erdma/erdma_verbs.c @@ -671,7 +671,7 @@ static u32 vmalloc_to_dma_addrs(struct erdma_dev *dev, dma_addr_t **dma_addrs, npages = (PAGE_ALIGN((u64)buf + len) - PAGE_ALIGN_DOWN((u64)buf)) >> PAGE_SHIFT; - pg_dma = vzalloc(npages * sizeof(dma_addr_t)); + pg_dma = vcalloc(npages, sizeof(dma_addr_t)); if (!pg_dma) return 0; -- 2.34.1
