Re: [PATCH] ipw2x00: Remove a memory allocation failure log message

From: Joe Perches
Date: Thu Apr 23 2020 - 04:14:48 EST


On Thu, 2020-04-23 at 09:58 +0200, Christophe JAILLET wrote:
> Axe a memory allocation failure log message. This message is useless and
> incorrect (vmalloc is not used here for the memory allocation)
>
> This has been like that since the very beginning of this driver in
> commit 43f66a6ce8da ("Add ipw2200 wireless driver.")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> drivers/net/wireless/intel/ipw2x00/ipw2200.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
> index 60b5e08dd6df..30c4f041f565 100644
> --- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
> +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
> @@ -3770,10 +3770,9 @@ static int ipw_queue_tx_init(struct ipw_priv *priv,
> struct pci_dev *dev = priv->pci_dev;
>
> q->txb = kmalloc_array(count, sizeof(q->txb[0]), GFP_KERNEL);
> - if (!q->txb) {
> - IPW_ERROR("vmalloc for auxiliary BD structures failed\n");
> + if (!q->txb)
> return -ENOMEM;
> - }
> +

This might avoid possible defects by using kcalloc instead too