[PATCH v9 02/17] tpm: fix invalid return value in pubek_show()

Jarkko Sakkinen
2018-11-18T12:48:21Z

Return zero when tpm_buf_init() fails as we do for other functions in
tpm-sysfs.c.

Fixes: da379f3c1db0c ("tpm: migrate pubek_show to struct tpm_buf")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
drivers/char/tpm/tpm-sysfs.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index c2769e55cb6c..7ed7eb6f906a 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -47,9 +47,8 @@ static ssize_t pubek_show(struct device *dev, struct device_attribute *attr,

memset(&anti_replay, 0, sizeof(anti_replay));

- rc = tpm_buf_init(&tpm_buf, TPM_TAG_RQU_COMMAND, TPM_ORD_READPUBEK);
- if (rc)
- return rc;
+ if (tpm_buf_init(&tpm_buf, TPM_TAG_RQU_COMMAND, TPM_ORD_READPUBEK))
+ return 0;

tpm_buf_append(&tpm_buf, anti_replay, sizeof(anti_replay));

--
2.19.1