diff mbox series

[v2,2/4] wifi: rtlwifi: destroy workqueue at rtl_deinit_core

Message ID 20241206173713.3222187-3-cascardo@igalia.com (mailing list archive)
State Accepted
Delegated to: Ping-Ke Shih
Headers show
Series wifi: rtlwifi probe error path fixes | expand

Commit Message

Thadeu Lima de Souza Cascardo Dec. 6, 2024, 5:37 p.m. UTC
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: 0c8173385e54 ("rtl8192ce: Add new driver")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
---
 drivers/net/wireless/realtek/rtlwifi/base.c | 6 ++++++
 drivers/net/wireless/realtek/rtlwifi/pci.c  | 2 --
 drivers/net/wireless/realtek/rtlwifi/usb.c  | 5 -----
 3 files changed, 6 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c
index fd28c7a722d8..ff61867d142f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.c
+++ b/drivers/net/wireless/realtek/rtlwifi/base.c
@@ -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);
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index 4388066eb9e2..e60ac910e750 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -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)
diff --git a/drivers/net/wireless/realtek/rtlwifi/usb.c b/drivers/net/wireless/realtek/rtlwifi/usb.c
index 0368ecea2e81..f5718e570011 100644
--- a/drivers/net/wireless/realtek/rtlwifi/usb.c
+++ b/drivers/net/wireless/realtek/rtlwifi/usb.c
@@ -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))) {