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authorChristophe Jaillet <christophe.jaillet@wanadoo.fr>2017-08-22 00:06:17 +0200
committerKalle Valo <kvalo@codeaurora.org>2017-08-24 12:54:33 +0300
commitb3b2f62c6238808f74e00767a3224f9be54d606f (patch)
tree51ed02119ee7bb77507b16cd31a08836c98bc60d /drivers/net/wireless
parentd9ee6015e573176e599693b6d0125ad74b210623 (diff)
mt7601u: check memory allocation failure
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>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/mediatek/mt7601u/dma.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt7601u/dma.c b/drivers/net/wireless/mediatek/mt7601u/dma.c
index 660267b359e4..7f3e3983b781 100644
--- a/drivers/net/wireless/mediatek/mt7601u/dma.c
+++ b/drivers/net/wireless/mediatek/mt7601u/dma.c
@@ -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]))