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wifi: rtlwifi: wait for firmware loading before releasing memory

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At probe error path, the firmware loading work may have already been
queued. In such a case, it will try to access memory allocated by the probe
function, which is about to be released. In such paths, wait for the
firmware worker to finish before releasing memory.

Fixes: a7f7c15e94 ("rtlwifi: rtl8192cu: Free ieee80211_hw if probing fails")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20241107133322.855112-4-cascardo@igalia.com
This commit is contained in:
Thadeu Lima de Souza Cascardo 2024-11-07 10:33:20 -03:00 committed by Ping-Ke Shih
parent 8559a9e0c4
commit b4b26642b3
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/realtek/rtlwifi/usb.c
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@ -1028,13 +1028,15 @@ int rtl_usb_probe(struct usb_interface *intf,
err = ieee80211_register_hw(hw);
if (err) {
pr_err("Can't register mac80211 hw.\n");
goto error_out;
goto error_init_vars;
}
rtlpriv->mac80211.mac80211_registered = 1;
set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
return 0;
error_init_vars:
wait_for_completion(&rtlpriv->firmware_loading_complete);
error_out:
rtl_deinit_core(hw);
error_out2: