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net: ethernet: mtk_wed: free up rings during detach

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During __mtk_wed_detach, rx_ring and tx_wdma aren't freed up.

Fix this by add them to mtk_wed_free_rx_rings.

This patch is pulled from mtk-openwrt-feeds to address Sashiko's review
and edit to rely on ring->desc instead of an extra flag.

Link: https://github.com/mediatek/mtk-openwrt-feeds/blob/main/25.12/files/target/linux/mediatek/patches-6.12/999-wed-04-Fix-reinsert-wifi-module-cause-memory-leak-issue.patch
Fixes: 4c5de09eb0 ("net: ethernet: mtk_wed: add configure wed wo support")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://sashiko.dev/#/message/179000700034.2160803.10594281691384015089%40kernel.org
Signed-off-by: Zhi-Jun You <hujy652@gmail.com>
Link: https://patch.msgid.link/20261026-wedfix-v6-3-a52f6b15d2fc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Zhi-Jun You 2026-10-26 17:57:30 +08:00 committed by Jakub Kicinski
parent 7180a42d8e
commit 5b8d12512c
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/mediatek/mtk_wed.c
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@ -949,6 +949,14 @@ mtk_wed_free_ring(struct mtk_wed_device *dev, struct mtk_wed_ring *ring)
static void
mtk_wed_free_rx_rings(struct mtk_wed_device *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(dev->rx_ring); i++)
mtk_wed_free_ring(dev, &dev->rx_ring[i]);
for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
mtk_wed_free_ring(dev, &dev->tx_wdma[i]);
mtk_wed_free_rx_buffer(dev);
mtk_wed_free_ring(dev, &dev->rro.ring);
}