path: root/security/integrity/ima/ima_crypto.c
diff options
authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2017-11-05 13:16:26 +0200
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-01-08 12:58:36 +0200
commitaad887f6641145fec2a801da2ce4ed36cf99c6a5 (patch)
tree80d2e496024240dbe3ee26cb43b955696a312013 /security/integrity/ima/ima_crypto.c
parent58cc1e4faf10a73c4302825ffd37a47d410fc1b5 (diff)
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 'security/integrity/ima/ima_crypto.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 9057b163c378..205bc69361ea 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -632,7 +632,7 @@ static void __init ima_pcrread(int idx, u8 *pcr)
if (!ima_used_chip)
- if (tpm_pcr_read(TPM_ANY_NUM, idx, pcr) != 0)
+ if (tpm_pcr_read(NULL, idx, pcr) != 0)
pr_err("Error Communicating to TPM chip\n");