tree 26a6accadf8b370425b7c7c5e15351375a1fbf10
parent 253683bbfb6bc5864417c8c35cb6ef13b5e259e6
author Thomas Chou <thomas@wytron.com.tw> 1274633042 +0000
committer David S. Miller <davem@davemloft.net> 1274681469 -0700

ethoc: fix null dereference in ethoc_probe

Dan reported the patch 0baa080c75c: "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 <error27@gmail.com>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>