[PATCH] net: ethernet: mtk_wed: fix double free in mtk_wed_rx_reset

[Zhi-Jun You]

mtk_wed_free_rx_buffer already calls mtk_wed_hwrro_free_buffer but
mtk_wed_rx_reset calls both subsequently. This would cause double free
because dma_free_coherent doesn't set freed desc to NULL.

Fix this by removing the mtk_wed_hwrro_free_buffer in mtk_wed_rx_reset.

Compile tested only because I don't own v3 hardware.

Fixes: 1543b8ff02f0 ("net: ethernet: mtk_wed: add wed 3.0 reset support")
Reported-by: Sashiko <sashiko-bot@xxxxxxxxxx>
Link: https://sashiko.dev/#/map/216156
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Zhi-Jun You <hujy652@xxxxxxxxx>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index f40ac5794341..5e9674c9e63a 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -1723,7 +1723,6 @@ mtk_wed_rx_reset(struct mtk_wed_device *dev)
 				   false);
 	}
 	mtk_wed_free_rx_buffer(dev);
-	mtk_wed_hwrro_free_buffer(dev);
 
 	return 0;
 }

---
base-commit: 11140c51df12e594d6bf2c8d2af5dec63b0219ac
change-id: 20261104-double-free-b6b95c2539c6

Best regards,
--  
Zhi-Jun You <hujy652@xxxxxxxxx>