dcbeab194645486dc482b49b44ef5b8634153034 - kernel/hikey-linaro

commit	dcbeab194645486dc482b49b44ef5b8634153034	[log] [tgz]
author	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>	Mon Apr 11 14:20:57 2016 +0300
committer	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>	Sat Jun 25 17:26:35 2016 +0300
tree	120fa47c8681277704daaf071584922949df1cad
parent	d30b8e4f68ef182f8dd84c76af9f148ca5842ea3 [diff]

tpm: fix crash in tpm_tis deinitialization

rmmod crashes the driver because tpm_chip_unregister() already sets ops
to NULL. This commit fixes the issue by moving tpm2_shutdown() to
tpm_chip_unregister(). This commit is also cleanup because it removes
duplicate code from tpm_crb and tpm_tis to the core.

Fixes: 4d3eac5e156a ("tpm: Provide strong locking for device removal")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>

drivers/char/tpm/tpm-chip.c[diff]
drivers/char/tpm/tpm2-cmd.c[diff]
drivers/char/tpm/tpm_crb.c[diff]
drivers/char/tpm/tpm_tis.c[diff]

4 files changed

tree: 120fa47c8681277704daaf071584922949df1cad