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mt7601u: check memory allocation failure

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Check memory allocation failure and return -ENOMEM in such a case, as
already done a few lines below.

As 'dev->tx_q' can be NULL, we also need to check for that in
'mt7601u_free_tx()', and return early.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Christophe Jaillet 2017-08-22 00:06:17 +02:00 committed by Kalle Valo
parent d9ee6015e5
commit b3b2f62c62
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/mediatek/mt7601u/dma.c
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@ -457,6 +457,9 @@ static void mt7601u_free_tx(struct mt7601u_dev *dev)
{
int i;
if (!dev->tx_q)
return;
for (i = 0; i < __MT_EP_OUT_MAX; i++)
mt7601u_free_tx_queue(&dev->tx_q[i]);
}
@ -484,6 +487,8 @@ static int mt7601u_alloc_tx(struct mt7601u_dev *dev)
dev->tx_q = devm_kcalloc(dev->dev, __MT_EP_OUT_MAX,
sizeof(*dev->tx_q), GFP_KERNEL);
if (!dev->tx_q)
return -ENOMEM;
for (i = 0; i < __MT_EP_OUT_MAX; i++)
if (mt7601u_alloc_tx_queue(dev, &dev->tx_q[i]))