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tpm2_tlcl: Use signed integer for tpm2_marshal_command return value

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The tpm2_marshal_command() function returns a negative value on error,
so we must use a signed type for the return value.

This was found by the coverity scan:
https://scan.coverity.com/projects/coreboot?tab=overview
CID:1357675
CID:1357676

Change-Id: I56d2ce7d52b9b70e43378c13c66b55ac2948f218
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Found-by: Coverity Scan
Reviewed-on: https://review.coreboot.org/15717
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
This commit is contained in:
Duncan Laurie 2016-07-15 04:51:45 -07:00 • committed by Martin Roth
parent b0672402ec
commit ed75b279a3
1 changed files with 2 additions and 1 deletions
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3
src/lib/tpm2_tlcl.c
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@ -21,7 +21,8 @@
static void *tpm_process_command(TPM_CC command, void *command_body)
{
size_t out_size, in_size;
ssize_t out_size;
size_t in_size;
/* Command/response buffer. */
static uint8_t cr_buffer[TPM_BUFFER_SIZE];