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wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work

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The workqueue might still be running, when the driver is stopped. To
avoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop().

Fixes: e542e66b7c ("rtl8xxxu: add bluetooth co-existence support for single antenna")
Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240111163628.320697-2-martin.kaistra@linutronix.de
This commit is contained in:
Martin Kaistra
2024-01-11 17:36:27 +01:00
committed by Kalle Valo
parent 178cc55d51
commit 1213acb478
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
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@@ -7480,6 +7480,7 @@ static void rtl8xxxu_stop(struct ieee80211_hw *hw)
if (priv->usb_interrupts)
rtl8xxxu_write32(priv, REG_USB_HIMR, 0);
cancel_work_sync(&priv->c2hcmd_work);
cancel_delayed_work_sync(&priv->ra_watchdog);
rtl8xxxu_free_rx_resources(priv);