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net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()' 

[ Upstream commit 10e3cc180e ]

A call to 'dma_alloc_coherent()' is hidden in 'sonic_alloc_descriptors()',
called from 'sonic_probe1()'.

This is correctly freed in the remove function, but not in the error
handling path of the probe function.
Fix it and add the missing 'dma_free_coherent()' call.

While at it, rename a label in order to be slightly more informative.

Fixes: efcce83936 ("[PATCH] macsonic/jazzsonic network drivers update")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Christophe JAILLET 2020-04-27 08:18:03 +02:00 committed by Greg Kroah-Hartman
parent e15d3d4290
commit 2bcd4df42d
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/natsemi/jazzsonic.c
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@ -235,11 +235,13 @@ static int jazz_sonic_probe(struct platform_device *pdev)
err = register_netdev(dev);
if (err)
goto out1;
goto undo_probe1;
return 0;
out1:
undo_probe1:
dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
release_mem_region(dev->base_addr, SONIC_MEM_SIZE);
out:
free_netdev(dev);