Commit 10e3cc18 authored Apr 27, 2020 by Christophe JAILLET Committed by David S. Miller Apr 27, 2020

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



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: efcce839 ("[PATCH] macsonic/jazzsonic network drivers update")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 4b5b71f7

drivers/net/ethernet/natsemi/jazzsonic.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -208,11 +208,13 @@ 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);

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