diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 4b12c4b9da8b..8954a8660ffc 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -978,8 +978,8 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
 	 * will call disable_irq which undoes all of the above.
 	 */
 	if (!(chip->flags & TPM_CHIP_FLAG_IRQ)) {
-		tpm_tis_write8(priv, original_int_vec,
-			       TPM_INT_VECTOR(priv->locality));
+		tpm_tis_write8(priv, TPM_INT_VECTOR(priv->locality),
+			       original_int_vec);
 		rc = -1;
 	}