[PATCH 4.9 142/212] net: spider_net: Fix the size used in a dma_free_coherent() call

From: Greg Kroah-Hartman
Date: Thu Aug 20 2020 - 07:55:57 EST


From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

[ Upstream commit 36f28f7687a9ce665479cce5d64ce7afaa9e77ae ]

Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()', in
'spider_net_init_chain()'.

Fixes: d4ed8f8d1fb7 ("Spidernet DMA coalescing")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/toshiba/spider_net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 1085987946212..9507ca2e02acd 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -296,8 +296,8 @@ spider_net_free_chain(struct spider_net_card *card,
descr = descr->next;
} while (descr != chain->ring);

- dma_free_coherent(&card->pdev->dev, chain->num_desc,
- chain->hwring, chain->dma_addr);
+ dma_free_coherent(&card->pdev->dev, chain->num_desc * sizeof(struct spider_net_hw_descr),
+ chain->hwring, chain->dma_addr);
}

/**
--
2.25.1