[U-Boot] [PATCH 20/25] tpm: Check that parse_byte_string() has data to parse

Rather then crashing when there is no data, print an error.

Signed-off-by: Simon Glass sjg@chromium.org ---

common/cmd_tpm.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/common/cmd_tpm.c b/common/cmd_tpm.c index f48ab04..2783895 100644 --- a/common/cmd_tpm.c +++ b/common/cmd_tpm.c @@ -58,6 +58,8 @@ static void *parse_byte_string(char *bytes, uint8_t *data, size_t *count_ptr) size_t count, length; int i;

+ if (!bytes) + return NULL; length = strlen(bytes); count = length / 2;