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| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2009-09-18 12:54:24 -0700 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-09-23 11:03:40 -0700 |
| commit | 0afd9056f1b43c9fcbfdf933b263d72023d382fe (patch) | |
| tree | f590f4afa4f090c8655c8536684068cdf13ca4d9 /drivers/char/tpm | |
| parent | 764db03fee50f7a3de91de80ef4a943f0d720801 (diff) | |
| download | lwn-0afd9056f1b43c9fcbfdf933b263d72023d382fe.tar.gz lwn-0afd9056f1b43c9fcbfdf933b263d72023d382fe.zip | |
tpm-fixup-pcrs-sysfs-file-update
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: Marcel Selhorst <m.selhorst@sirrix.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index b0603b2e5684..1f32b520ca26 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -742,7 +742,7 @@ EXPORT_SYMBOL_GPL(tpm_pcr_read); * the module usage count. */ #define TPM_ORD_PCR_EXTEND cpu_to_be32(20) -#define EXTEND_PCR_SIZE 34 +#define EXTEND_PCR_RESULT_SIZE 34 static struct tpm_input_header pcrextend_header = { .tag = TPM_TAG_RQU_COMMAND, .length = cpu_to_be32(34), @@ -760,10 +760,9 @@ int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) return -ENODEV; cmd.header.in = pcrextend_header; - BUILD_BUG_ON(be32_to_cpu(cmd.header.in.length) > EXTEND_PCR_SIZE); cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx); memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE); - rc = transmit_cmd(chip, &cmd, cmd.header.in.length, + rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, "attempting extend a PCR value"); module_put(chip->dev->driver->owner); |