From: Chris Chiu chiu@endlessm.com
[ Upstream commit 86279456a4d47782398d3cb8193f78f672e36cac ]
Free the skb if usb_submit_urb fails on rx_urb. And free the urb no matter usb_submit_urb succeeds or not in rtl8xxxu_submit_int_urb.
Signed-off-by: Chris Chiu chiu@endlessm.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20200906040424.22022-1-chiu@endlessm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 070ea0f456ab..b80cff96dea1 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -5453,7 +5453,6 @@ static int rtl8xxxu_submit_int_urb(struct ieee80211_hw *hw) ret = usb_submit_urb(urb, GFP_KERNEL); if (ret) { usb_unanchor_urb(urb); - usb_free_urb(urb); goto error; }
@@ -5462,6 +5461,7 @@ static int rtl8xxxu_submit_int_urb(struct ieee80211_hw *hw) rtl8xxxu_write32(priv, REG_USB_HIMR, val32);
error: + usb_free_urb(urb); return ret; }
@@ -5787,6 +5787,7 @@ static int rtl8xxxu_start(struct ieee80211_hw *hw) struct rtl8xxxu_priv *priv = hw->priv; struct rtl8xxxu_rx_urb *rx_urb; struct rtl8xxxu_tx_urb *tx_urb; + struct sk_buff *skb; unsigned long flags; int ret, i;
@@ -5837,6 +5838,13 @@ static int rtl8xxxu_start(struct ieee80211_hw *hw) rx_urb->hw = hw;
ret = rtl8xxxu_submit_rx_urb(priv, rx_urb); + if (ret) { + if (ret != -ENOMEM) { + skb = (struct sk_buff *)rx_urb->urb.context; + dev_kfree_skb(skb); + } + rtl8xxxu_queue_rx_urb(priv, rx_urb); + } } exit: /*