net: korina: fix kfree of rx/tx descriptor array

[ Upstream commit 3af5f0f5c74ecbaf757ef06c3f80d56751277637 ]

kmalloc returns KSEG0 addresses so convert back from KSEG1
in kfree. Also make sure array is freed when the driver is
unloaded from the kernel.

Fixes: ef11291bcd5f ("Add support the Korina (IDT RC32434) Ethernet MAC")
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 3c0a6451273df3464cadf39fbea78787f4907725..1357d464e8c432be9d978f8cc42c0642add3c775 100644 (file)
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -1188,7 +1188,7 @@ out:
        return rc;
 
 probe_err_register:
-       kfree(lp->td_ring);
+       kfree(KSEG0ADDR(lp->td_ring));
 probe_err_td_ring:
        iounmap(lp->tx_dma_regs);
 probe_err_dma_tx:
@@ -1208,6 +1208,7 @@ static int korina_remove(struct platform_device *pdev)
        iounmap(lp->eth_regs);
        iounmap(lp->rx_dma_regs);
        iounmap(lp->tx_dma_regs);
+       kfree(KSEG0ADDR(lp->td_ring));
 
        unregister_netdev(bif->dev);
        free_netdev(bif->dev);