[PATCH net] net: mtk: wed: Fix dma_free_coherent() size mtk_wed_hwrro_free_buffer()

[Thomas Fourier]

The DMA buffer alloc'd in mtk_wed_hwrro_buffer_alloc() with size
dev->wlan.rx_nbuf but is freed with size dev->hw_rro.size.

Change the dealloc size to match the one used in
mtk_wed_hwrro_buffer_alloc().

Fixes: 6757d345dd7d ("net: ethernet: mtk_wed: introduce hw_rro support for MT7988")
Cc: <stable at vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas at gmail.com>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 1ed1f88dd7f8..455df564174d 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -879,7 +879,7 @@ mtk_wed_hwrro_free_buffer(struct mtk_wed_device *dev)
 		__free_page(page);
 	}
 
-	dma_free_coherent(dev->hw->dev, dev->hw_rro.size * sizeof(*desc),
+	dma_free_coherent(dev->hw->dev, dev->wlan.rx_nbuf * sizeof(*desc),
 			  desc, dev->hw_rro.desc_phys);
 
 free_pagelist:
-- 
2.43.0