tpm: Check that parse_byte_string() has data to parse
authorSimon Glass <sjg@chromium.org>
Sun, 23 Aug 2015 00:31:36 +0000 (18:31 -0600)
committerLothar Waßmann <LW@KARO-electronics.de>
Thu, 10 Sep 2015 10:19:17 +0000 (12:19 +0200)
Rather then crashing when there is no data, print an error. The error is
printed by the caller to parse_byte_string().

Acked-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
common/cmd_tpm.c

index 65e7371..e9c6618 100644 (file)
@@ -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;