commit
290564367ab7fa7e2048bdc00d9c0ad016b41eea upstream.
After rtw_usb_alloc_rx_bufs() has been called rx urbs have been
allocated and must be freed in the error path. After rtw_usb_init_rx()
has been called they are submitted, so they also must be killed.
Add these forgotten steps to the probe error path.
Besides the lost memory this also fixes a problem when the driver
fails to download the firmware in rtw_chip_info_setup(). In this
case it can happen that the completion of the rx urbs handler runs
at a time when we already freed our data structures resulting in
a kernel crash.
Fixes: a82dfd33d123 ("wifi: rtw88: Add common USB chip support")
Cc: stable@vger.kernel.org
Reported-by: Ilgaz Ă–cal <ilgaz@ilgaz.gen.tr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230823075021.588596-1-s.hauer@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ret = rtw_core_init(rtwdev);
if (ret)
- goto err_release_hw;
+ goto err_free_rx_bufs;
ret = rtw_usb_intf_init(rtwdev, intf);
if (ret) {
err_deinit_core:
rtw_core_deinit(rtwdev);
+err_free_rx_bufs:
+ rtw_usb_free_rx_bufs(rtwusb);
+
err_release_hw:
ieee80211_free_hw(hw);