Patch "net: korina: fix kfree of rx/tx descriptor array" has been added to the 4.19-stable tree

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This is a note to let you know that I've just added the patch titled

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

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-korina-fix-kfree-of-rx-tx-descriptor-array.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 0f667890392280fa2ef19dd4ba4cf431a56c52bb
Author: Valentin Vidic <vvidic@xxxxxxxxxxxxxxxxxxxxxx>
Date:   Mon Oct 12 00:03:29 2020 +0200

    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@xxxxxxxxxxxxxxxxxxxxxx>
    Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index ae195f8adff58..5bdff77c0ad10 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -1113,7 +1113,7 @@ static int korina_probe(struct platform_device *pdev)
 	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:
@@ -1133,6 +1133,7 @@ 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);



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