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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2017-11-05 14:16:26 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2018-01-08 13:58:36 +0300 |
| commit | aad887f6641145fec2a801da2ce4ed36cf99c6a5 (patch) | |
| tree | 80d2e496024240dbe3ee26cb43b955696a312013 /drivers/char/hw_random | |
| parent | 58cc1e4faf10a73c4302825ffd37a47d410fc1b5 (diff) | |
| download | linux-aad887f6641145fec2a801da2ce4ed36cf99c6a5.tar.xz | |
tpm: use struct tpm_chip for tpm_chip_find_get()
Device number (the character device index) is not a stable identifier
for a TPM chip. That is the reason why every call site passes
TPM_ANY_NUM to tpm_chip_find_get().
This commit changes the API in a way that instead a struct tpm_chip
instance is given and NULL means the default chip. In addition, this
commit refines the documentation to be up to date with the
implementation.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> (@chip_num -> @chip part)
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@ziepe.ca>
Tested-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Diffstat (limited to 'drivers/char/hw_random')
| -rw-r--r-- | drivers/char/hw_random/tpm-rng.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/hw_random/tpm-rng.c b/drivers/char/hw_random/tpm-rng.c index d6d448266f07..c5e363825af0 100644 --- a/drivers/char/hw_random/tpm-rng.c +++ b/drivers/char/hw_random/tpm-rng.c @@ -25,7 +25,7 @@ static int tpm_rng_read(struct hwrng *rng, void *data, size_t max, bool wait) { - return tpm_get_random(TPM_ANY_NUM, data, max); + return tpm_get_random(NULL, data, max); } static struct hwrng tpm_rng = { |