From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sat, 5 Oct 2013 17:38:02 +0000 (-0600)
Subject: tpm: Use container_of to locate the tpm_chip in tpm_open
X-Git-Tag: v3.13-rc1~18^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58c09e21332c4ab56ac694a71f6715db2768f53f;p=pandora-kernel.git

tpm: Use container_of to locate the tpm_chip in tpm_open

misc_open sets the file->private_date to the misc_dev when calling
open. We can use container_of to go from the misc_dev back to the
tpm_chip.

Future clean ups will move tpm_open into a new file and this change
means we do not have to export the tpm_chip list.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---

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