diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2023-08-23 10:50:21 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-08-25 13:02:27 +0300 |
| commit | 290564367ab7fa7e2048bdc00d9c0ad016b41eea (patch) | |
| tree | 8364ba6c18aaa51edecaa6edf5d974c99eb86db7 /drivers | |
| parent | 78d84f35d2c3bf4434e9d785e4b4c33fa8e57878 (diff) | |
| download | linux-290564367ab7fa7e2048bdc00d9c0ad016b41eea.tar.xz | |
wifi: rtw88: usb: kill and free rx urbs on probe failure
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 Öcal <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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/usb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c index 95b9d933158f..d879d7e3dc81 100644 --- a/drivers/net/wireless/realtek/rtw88/usb.c +++ b/drivers/net/wireless/realtek/rtw88/usb.c @@ -826,7 +826,7 @@ int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) 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) { @@ -872,6 +872,9 @@ err_destroy_usb: err_deinit_core: rtw_core_deinit(rtwdev); +err_free_rx_bufs: + rtw_usb_free_rx_bufs(rtwusb); + err_release_hw: ieee80211_free_hw(hw); |