We should check that we're within bounds first before checking that
"chip->active_banks[i] != TPM2_ALG_ERROR" so I've re-ordered the two
checks.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 423938e8570f..087748b8264f 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -800,8 +800,8 @@ int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
memset(digest_list, 0, sizeof(digest_list));
- for (i = 0; chip->active_banks[i] != TPM2_ALG_ERROR &&
- i < ARRAY_SIZE(chip->active_banks); i++) {
+ for (i = 0; i < ARRAY_SIZE(chip->active_banks) &&
+ chip->active_banks[i] != TPM2_ALG_ERROR; i++) {
digest_list[i].alg_id = chip->active_banks[i];
memcpy(digest_list[i].digest, hash, TPM_DIGEST_SIZE);
count++;
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