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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_queue.c
parent58cc1e4faf10a73c4302825ffd37a47d410fc1b5 (diff)
downloadlinux-aad887f6641145fec2a801da2ce4ed36cf99c6a5.tar.gz
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_queue.c')
-rw-r--r--security/integrity/ima/ima_queue.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index a02a86d51102..418f35e38015 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -145,7 +145,7 @@ static int ima_pcr_extend(const u8 *hash, int pcr)
if (!ima_used_chip)
return result;
- result = tpm_pcr_extend(TPM_ANY_NUM, pcr, hash);
+ result = tpm_pcr_extend(NULL, pcr, hash);
if (result != 0)
pr_err("Error Communicating to TPM chip, result: %d\n", result);
return result;