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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-04-11 14:20:57 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-06-25 17:26:35 +0300 |
| commit | dcbeab194645486dc482b49b44ef5b8634153034 (patch) | |
| tree | 120fa47c8681277704daaf071584922949df1cad /drivers/char/tpm/tpm2-cmd.c | |
| parent | d30b8e4f68ef182f8dd84c76af9f148ca5842ea3 (diff) | |
| download | linux-dcbeab194645486dc482b49b44ef5b8634153034.tar.xz | |
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>
Diffstat (limited to 'drivers/char/tpm/tpm2-cmd.c')
| -rw-r--r-- | drivers/char/tpm/tpm2-cmd.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c index 5fc0e7c64daa..e42266589ce6 100644 --- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -773,7 +773,6 @@ void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type) dev_warn(&chip->dev, "transmit returned %d while stopping the TPM", rc); } -EXPORT_SYMBOL_GPL(tpm2_shutdown); /* * tpm2_calc_ordinal_duration() - maximum duration for a command |