tpm: fix byte order related arithmetic inconsistency in tpm_getcap()

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You should not do arithmetic with __be32 or __le32 types because
sometimes it results incorrect results. Calculations must be done only
with integers that are in in the CPU byte order. This commit migrates
tpm_getcap() to struct tpm_buf in order to sort out these issues.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>

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Jarkko Sakkinen 2017-05-07 20:50:02 +03:00

parent d8c3eab5cb

commit 124bdcf4a6

2 changed files with 16 additions and 27 deletions

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30

drivers/char/tpm/tpm-interface.c

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13

drivers/char/tpm/tpm.h

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