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SubjectRe: [PATCH v2] Broadcom CNIC core network driver: fix mem leak on allocation failures in cnic_alloc_uio_rings()
From: Jesper Juhl <>
Date: Sun, 26 Dec 2010 21:57:39 +0100 (CET)

> We are leaking memory in drivers/net/cnic.c::cnic_alloc_uio_rings() if
> either of the calls to dma_alloc_coherent() fail. This patch fixes it by
> freeing both the memory allocated with kzalloc() and memory allocated with
> previous calls to dma_alloc_coherent() when there's a failure.
> Thanks to Joe Perches <> for suggesting a better
> implementation than my initial version.
> Signed-off-by: Jesper Juhl <>

> + err_dma:
> + dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
> + udev->l2_ring, udev->l2_ring_map);

Space before tab in indentation, improperly positioned third argument

I fixed all of this up, but please do not skimp on making sure these
details are taken care of when updating your patch in response to feedback.


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