tpm_tis_spi: Check correct byte for wait state indicator

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commit e110cc69dc upstream.

Wait states are signaled in the last byte received from the TPM in
response to the header, not the first byte. Check rx_buf[3] instead of
rx_buf[0].

Fixes: 0edbfea537 ("tpm/tpm_tis_spi: Add support for spi phy")
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Signed-off-by: Peter Huewe <peter.huewe@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Benoit Houyere <benoit.houyere@st.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Peter Huewe 2017-03-02 13:03:13 +00:00 • committed by Greg Kroah-Hartman

parent daa432c1a6

commit d513cf24e2

1 changed files with 18 additions and 18 deletions

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drivers/char/tpm/tpm_tis_spi.c

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