From: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxx m> A portion of send() callbacks have returned length, in many cases just returning back what was given as an argument, and tpm_crb has returned 0 on success. This patch set fixes and unifies the behaviour. v4: * Return zero already in tpm_tis_send_main() so that it is applied to all call sites of tpm_tis_send(). * Fixup tpm_ibmvtpm_send() documentation. v3: tpm_tis_core fix was left out of the staging area :-( v2: The drivers tpm_nsc and tpm_infineon were forgotten. For this version I checked both with find and command and from Kconfig that everything that is supposed to be a driver directly interfacing with the TPM core, is included (e.g. discluding tpm_tis_spi). Jarkko Sakkinen (2): tpm: Unify the send callback behaviour tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete drivers/char/tpm/st33zp24/st33zp24.c | 2 +- drivers/char/tpm/tpm_atmel.c | 2 +- drivers/char/tpm/tpm_i2c_atmel.c | 10 +++++++++- drivers/char/tpm/tpm_i2c_infineon.c | 2 +- drivers/char/tpm/tpm_i2c_nuvoton.c | 2 +- drivers/char/tpm/tpm_ibmvtpm.c | 8 ++++---- drivers/char/tpm/tpm_infineon.c | 2 +- drivers/char/tpm/tpm_nsc.c | 2 +- drivers/char/tpm/tpm_tis_core.c | 2 +- drivers/char/tpm/tpm_vtpm_proxy.c | 3 +-- drivers/char/tpm/xen-tpmfront.c | 2 +- 11 files changed, 22 insertions(+), 15 deletions(-) -- 2.19.1