diff mbox series

[v2] wifi: wl1251: fix memory leak in wl1251_tx_work

Message ID 20250330104532.44935-1-abdun.nihaal@gmail.com
State New
Headers show
Series [v2] wifi: wl1251: fix memory leak in wl1251_tx_work | expand

Commit Message

Abdun Nihaal March 30, 2025, 10:45 a.m. UTC
The skb dequeued from tx_queue is lost when wl1251_ps_elp_wakeup fails
with a -ETIMEDOUT error. Fix that by queueing the skb back to tx_queue.

Fixes: c5483b719363 ("wl12xx: check if elp wakeup failed")
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
---
V1 -> V2 : Add subsystem name in commit header message

 drivers/net/wireless/ti/wl1251/tx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Nemanov, Michael March 31, 2025, 6:04 a.m. UTC | #1
On 3/30/2025 1:45 PM, Abdun Nihaal wrote:
> The skb dequeued from tx_queue is lost when wl1251_ps_elp_wakeup fails
> with a -ETIMEDOUT error. Fix that by queueing the skb back to tx_queue.
> 
> Fixes: c5483b719363 ("wl12xx: check if elp wakeup failed")
> Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com
Reviewed-by: Michael Nemanov <michael.nemanov@ti.com>
Markus Elfring March 31, 2025, 10:42 a.m. UTC | #2
> The skb dequeued from tx_queue is lost when wl1251_ps_elp_wakeup fails

                                                                   failed?


> with a -ETIMEDOUT error. Fix that by queueing the skb back to tx_queue.

Can an other summary phrase be more appropriate for such a software situation?

Regards,
Markus
diff mbox series

Patch

diff --git a/drivers/net/wireless/ti/wl1251/tx.c b/drivers/net/wireless/ti/wl1251/tx.c
index 474b603c121c..adb4840b0489 100644
--- a/drivers/net/wireless/ti/wl1251/tx.c
+++ b/drivers/net/wireless/ti/wl1251/tx.c
@@ -342,8 +342,10 @@  void wl1251_tx_work(struct work_struct *work)
 	while ((skb = skb_dequeue(&wl->tx_queue))) {
 		if (!woken_up) {
 			ret = wl1251_ps_elp_wakeup(wl);
-			if (ret < 0)
+			if (ret < 0) {
+				skb_queue_head(&wl->tx_queue, skb);
 				goto out;
+			}
 			woken_up = true;
 		}