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authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-11-03 02:31:07 +0200
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2019-02-13 09:47:42 +0200
commit720b071102d8fab3f0a2808db3ba76c5ce880b7a (patch)
treecfb8705e32d11c3cbdbf5cb1d135f45de944f852 /drivers/char/tpm
parentb34b77a99b1a4ccccb54f2c4c6ef982d6b008c15 (diff)
tpm: access command header through struct in tpm_try_transmit()
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> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com> Tested-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/tpm-interface.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index e0ed31cbc7e9..7870e3178ada 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) {