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| author | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2011-11-11 12:57:02 -0500 |
|---|---|---|
| committer | Rajiv Andrade <srajiv@linux.vnet.ibm.com> | 2011-11-16 09:42:54 -0200 |
| commit | 2b30a90f6c358714b9d6e628ac92e514917f93a1 (patch) | |
| tree | d5fee00222aea732edd6760eb5fe78675e5dc2e2 /drivers/char/tpm/tpm.c | |
| parent | e163bc8e4a0cd1cdffadb58253f7651201722d56 (diff) | |
| download | lwn-2b30a90f6c358714b9d6e628ac92e514917f93a1.tar.gz lwn-2b30a90f6c358714b9d6e628ac92e514917f93a1.zip | |
tpm: Have tpm_get_timeouts return an error code
Have the tpm_get_timeouts function return an error code.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char/tpm/tpm.c')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index e53af7638186..b6c4a320cfde 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -527,7 +527,7 @@ void tpm_gen_interrupt(struct tpm_chip *chip) } EXPORT_SYMBOL_GPL(tpm_gen_interrupt); -void tpm_get_timeouts(struct tpm_chip *chip) +int tpm_get_timeouts(struct tpm_chip *chip) { struct tpm_cmd_t tpm_cmd; struct timeout_t *timeout_cap; @@ -549,7 +549,7 @@ void tpm_get_timeouts(struct tpm_chip *chip) if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 || be32_to_cpu(tpm_cmd.header.out.length) != sizeof(tpm_cmd.header.out) + sizeof(u32) + 4 * sizeof(u32)) - return; + return -EINVAL; timeout_cap = &tpm_cmd.params.getcap_out.cap.timeout; /* Don't overwrite default if value is 0 */ @@ -580,12 +580,12 @@ duration: rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the durations"); if (rc) - return; + return rc; if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 || be32_to_cpu(tpm_cmd.header.out.length) != sizeof(tpm_cmd.header.out) + sizeof(u32) + 3 * sizeof(u32)) - return; + return -EINVAL; duration_cap = &tpm_cmd.params.getcap_out.cap.duration; chip->vendor.duration[TPM_SHORT] = @@ -607,6 +607,7 @@ duration: chip->vendor.duration_adjusted = true; dev_info(chip->dev, "Adjusting TPM timeout parameters."); } + return 0; } EXPORT_SYMBOL_GPL(tpm_get_timeouts); |