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ethoc: fix null dereference in ethoc_probe
Dan reported the patch 0baa080: "ethoc: use system memory as buffer" introduced a potential null dereference. 1060 free: 1061 if (priv->dma_alloc) ^^^^^^^^^^^^^^^ priv can be null here. He also suggested that the error handling is not complete. This patch fixes the null priv issue and improves resources releasing in ethoc_probe() and ethoc_remove(). Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Thomas Chou <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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