[PATCH] ath9k: hif_usb: fix memory leak in ath9k_hif_usb_firmware_cb
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STALE1919d
From: Dongliang Mu <hidden>
Date: 2021-07-09 08:44:12
Also in:
linux-wireless, lkml
Subsystem:
atheros ath generic utilities, qualcomm atheros ath9k wireless driver, the rest · Maintainers:
Jeff Johnson, Toke Høiland-Jørgensen, Linus Torvalds
The commit 03fb92a432ea ("ath9k: hif_usb: fix race condition between
usb_get_urb() and usb_kill_anchored_urbs()") adds three usb_get_urb
in ath9k_hif_usb_dealloc_tx_urbs and usb_free_urb.
Fix this bug by adding corresponding usb_free_urb in
ath9k_hif_usb_dealloc_tx_urbs other and hif_usb_stop.
Reported-by: <redacted>
Fixes: 03fb92a432ea ("ath9k: hif_usb: fix race condition between usb_get_urb() and usb_kill_anchored_urbs()")
Signed-off-by: Dongliang Mu <redacted>
---
drivers/net/wireless/ath/ath9k/hif_usb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 860da13bfb6a..bda91ff3289b 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c@@ -457,6 +457,7 @@ static void hif_usb_stop(void *hif_handle) usb_kill_urb(tx_buf->urb); list_del(&tx_buf->list); usb_free_urb(tx_buf->urb); + usb_free_urb(tx_buf->urb); kfree(tx_buf->buf); kfree(tx_buf); spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
@@ -779,6 +780,7 @@ static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) usb_kill_urb(tx_buf->urb); list_del(&tx_buf->list); usb_free_urb(tx_buf->urb); + usb_free_urb(tx_buf->urb); kfree(tx_buf->buf); kfree(tx_buf); spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
@@ -797,6 +799,7 @@ static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) usb_kill_urb(tx_buf->urb); list_del(&tx_buf->list); usb_free_urb(tx_buf->urb); + usb_free_urb(tx_buf->urb); kfree(tx_buf->buf); kfree(tx_buf); spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
--
2.25.1