From e808bb6ed042020d3a15cb6e85ca646bc7c9eda8 Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Fri, 9 Sep 2016 20:40:16 +0200 Subject: [PATCH] ATM-iphase: Use kmalloc_array() in tx_init() * Multiplications for the size determination of memory allocations indicated that array data structures should be processed. Thus use the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. * Replace the specification of data types by pointer dereferences to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring Signed-off-by: David S. Miller --- drivers/atm/iphase.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c index 809dd1e02091..9d8807e76639 100644 --- a/drivers/atm/iphase.c +++ b/drivers/atm/iphase.c @@ -1975,7 +1975,9 @@ static int tx_init(struct atm_dev *dev) buf_desc_ptr++; tx_pkt_start += iadev->tx_buf_sz; } - iadev->tx_buf = kmalloc(iadev->num_tx_desc*sizeof(struct cpcs_trailer_desc), GFP_KERNEL); + iadev->tx_buf = kmalloc_array(iadev->num_tx_desc, + sizeof(*iadev->tx_buf), + GFP_KERNEL); if (!iadev->tx_buf) { printk(KERN_ERR DEV_LABEL " couldn't get mem\n"); goto err_free_dle; @@ -1995,8 +1997,9 @@ static int tx_init(struct atm_dev *dev) sizeof(*cpcs), DMA_TO_DEVICE); } - iadev->desc_tbl = kmalloc(iadev->num_tx_desc * - sizeof(struct desc_tbl_t), GFP_KERNEL); + iadev->desc_tbl = kmalloc_array(iadev->num_tx_desc, + sizeof(*iadev->desc_tbl), + GFP_KERNEL); if (!iadev->desc_tbl) { printk(KERN_ERR DEV_LABEL " couldn't get mem\n"); goto err_free_all_tx_bufs; @@ -2124,7 +2127,9 @@ static int tx_init(struct atm_dev *dev) memset((caddr_t)(iadev->seg_ram+i), 0, iadev->num_vc*4); vc = (struct main_vc *)iadev->MAIN_VC_TABLE_ADDR; evc = (struct ext_vc *)iadev->EXT_VC_TABLE_ADDR; - iadev->testTable = kmalloc(sizeof(long)*iadev->num_vc, GFP_KERNEL); + iadev->testTable = kmalloc_array(iadev->num_vc, + sizeof(*iadev->testTable), + GFP_KERNEL); if (!iadev->testTable) { printk("Get freepage failed\n"); goto err_free_desc_tbl; -- GitLab