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 <[email protected]>
Reviewed-by: Stefan Berger <[email protected]>
Tested-by: Stefan Berger <[email protected]>
Reviewed-by: Jerry Snitselaar <[email protected]>
Reviewed-by: James Bottomley <[email protected]>
---
 drivers/char/tpm/tpm-interface.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index b5b6a7c3f995..c28ffef92f1a 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) {
-- 
2.19.1

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