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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2015-11-07 11:33:25 (GMT) |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2015-11-09 15:52:56 (GMT) |
| commit | d56e4f75346933dd2cb11533a668ce883908c859 (patch) | |
| tree | 943b7852ed98c6cf34ecf2fcd025f1476d86338a /drivers/hwspinlock/omap_hwspinlock.c | |
| parent | 2e31125c241212e2407d61a2d1cbdad0055a30b0 (diff) | |
| download | linux-d56e4f75346933dd2cb11533a668ce883908c859.tar.xz | |
tpm: fix compat 'ppi' link handling in tpm_chip_register()
__compat_only_sysfs_link_entry_to_kobj() was unconditionally called for
TPM1 chips, which caused crash on Acer C720 laptop where DSM for the
ACPI object did not exist.
There are two reasons for unwanted behavior:
* The code did not check whether
__compat_only_sysfs_link_entry_to_kobj() returned -ENOENT. This is
OK. It just meanst that ppi is not available.
* The code did not clean up properly. Compat link should added only
after all other init is done.
This patch sorts out these issues.
Fixes: 9b774d5cf2db
Reported-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jeremiah Mahler <jmmahler@gmail.com>
Acked-by: Peter Huewe <PeterHuewe@gmx.de>
Diffstat (limited to 'drivers/hwspinlock/omap_hwspinlock.c')
0 files changed, 0 insertions, 0 deletions