diff mbox series

[v10,06/17] tpm: access command header through struct in tpm_try_transmit()

Message ID 20190116212342.24524-7-jarkko.sakkinen@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Remove nested TPM operations | expand

Commit Message

Jarkko Sakkinen Jan. 16, 2019, 9:23 p.m. UTC 
Instead of accessing fields of the command header through offsets to
the raw buffer, it is a better idea to use the header struct pointer
that is already used elsewhere in the function.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
---
 drivers/char/tpm/tpm-interface.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 5cee969c2e49..689d07e67643 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -187,8 +187,8 @@  static ssize_t tpm_try_transmit(struct tpm_chip *chip, struct tpm_space *space,
 	if (bufsiz > TPM_BUFSIZE)
 		bufsiz = TPM_BUFSIZE;
 
-	count = be32_to_cpu(*((__be32 *) (buf + 2)));
-	ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
+	count = be32_to_cpu(header->length);
+	ordinal = be32_to_cpu(header->ordinal);
 	if (count == 0)
 		return -ENODATA;
 	if (count > bufsiz) {