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wifi: rtlwifi: destroy workqueue at rtl_deinit_core

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rtl_wq is allocated at rtl_init_core, so it makes more sense to destroy it
at rtl_deinit_core. In the case of USB, where _rtl_usb_init does not
require anything to be undone, that is fine. But for PCI, rtl_pci_init,
which is called after rtl_init_core, needs to deallocate data, but only if
it has been called.

That means that destroying the workqueue needs to be done whether
rtl_pci_init has been called or not. And since rtl_pci_deinit was doing it,
it has to be moved out of there.

It makes more sense to move it to rtl_deinit_core and have it done in both
cases, USB and PCI.

Since this is a requirement for a followup memory leak fix, mark this as
fixing such memory leak.

Fixes: 0c8173385e ("rtl8192ce: Add new driver")
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/20241206173713.3222187-3-cascardo@igalia.com
This commit is contained in:
Thadeu Lima de Souza Cascardo
2024-12-06 14:37:11 -03:00
committed by Ping-Ke Shih
parent 2fdac64c3c
commit d8ece6fc36
3 changed files with 6 additions and 7 deletions
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6
drivers/net/wireless/realtek/rtlwifi/base.c
View File

@@ -575,9 +575,15 @@ static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
void rtl_deinit_core(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
rtl_c2hcmd_launcher(hw, 0);
rtl_free_entries_from_scan_list(hw);
rtl_free_entries_from_ack_queue(hw, false);
if (rtlpriv->works.rtl_wq) {
destroy_workqueue(rtlpriv->works.rtl_wq);
rtlpriv->works.rtl_wq = NULL;
}
}
EXPORT_SYMBOL_GPL(rtl_deinit_core);

2
drivers/net/wireless/realtek/rtlwifi/pci.c
View File

@@ -1656,8 +1656,6 @@ static void rtl_pci_deinit(struct ieee80211_hw *hw)
synchronize_irq(rtlpci->pdev->irq);
tasklet_kill(&rtlpriv->works.irq_tasklet);
cancel_work_sync(&rtlpriv->works.lps_change_work);
destroy_workqueue(rtlpriv->works.rtl_wq);
}
static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)

5
drivers/net/wireless/realtek/rtlwifi/usb.c
View File

@@ -629,11 +629,6 @@ static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw)
tasklet_kill(&rtlusb->rx_work_tasklet);
cancel_work_sync(&rtlpriv->works.lps_change_work);
if (rtlpriv->works.rtl_wq) {
destroy_workqueue(rtlpriv->works.rtl_wq);
rtlpriv->works.rtl_wq = NULL;
}
skb_queue_purge(&rtlusb->rx_queue);
while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {