28 lines
1.1 KiB
Diff
28 lines
1.1 KiB
Diff
From 1213acb478a7181cd73eeaf00db430f1e45b1361 Mon Sep 17 00:00:00 2001
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From: Martin Kaistra <martin.kaistra@linutronix.de>
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Date: Thu, 11 Jan 2024 17:36:27 +0100
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Subject: [PATCH 1/2] 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
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avoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop().
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Fixes: e542e66b7c2e ("rtl8xxxu: add bluetooth co-existence support for single antenna")
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Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
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Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
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Signed-off-by: Kalle Valo <kvalo@kernel.org>
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Link: https://msgid.link/20240111163628.320697-2-martin.kaistra@linutronix.de
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---
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drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
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+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
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@@ -7480,6 +7480,7 @@ static void rtl8xxxu_stop(struct ieee802
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if (priv->usb_interrupts)
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rtl8xxxu_write32(priv, REG_USB_HIMR, 0);
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+ cancel_work_sync(&priv->c2hcmd_work);
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cancel_delayed_work_sync(&priv->ra_watchdog);
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rtl8xxxu_free_rx_resources(priv);
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