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Date: Tue, 29 Nov 2011 22:08:00 +0100 From: Thomas Meyer <thomas@...3r.de> To: linville@...driver.com, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] iwlegacy: Use kcalloc instead of kzalloc to allocate array The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@...3r.de> --- diff -u -p a/drivers/net/wireless/iwlegacy/iwl-tx.c b/drivers/net/wireless/iwlegacy/iwl-tx.c --- a/drivers/net/wireless/iwlegacy/iwl-tx.c 2011-11-13 11:07:38.540345582 +0100 +++ b/drivers/net/wireless/iwlegacy/iwl-tx.c 2011-11-28 19:55:42.036442592 +0100 @@ -297,8 +297,8 @@ static int iwl_legacy_tx_queue_alloc(str /* Driver private data, only for Tx (not command) queues, * not shared with device. */ if (id != priv->cmd_queue) { - txq->txb = kzalloc(sizeof(txq->txb[0]) * - TFD_QUEUE_SIZE_MAX, GFP_KERNEL); + txq->txb = kcalloc(TFD_QUEUE_SIZE_MAX, sizeof(txq->txb[0]), + GFP_KERNEL); if (!txq->txb) { IWL_ERR(priv, "kmalloc for auxiliary BD " "structures failed\n"); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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