tpm_tis: Clean up after module_param cleanup

Commit 90ab5ee941 changed the
itpm module parameter from int to bool. Some other changes
need to be done to clean up after this change.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>

drivers/char/tpm/tpm_tis.c

@@ -367,7 +367,7 @@ static int probe_itpm(struct tpm_chip *chip)
 		0x00, 0x00, 0x00, 0xf1
 	};
 	size_t len = sizeof(cmd_getticks);
-	int rem_itpm = itpm;
+	bool rem_itpm = itpm;
 	u16 vendor = ioread16(chip->vendor.iobase + TPM_DID_VID(0));
 
 	/* probe only iTPMS */
@@ -510,7 +510,7 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
 			resource_size_t len, unsigned int irq)
 {
 	u32 vendor, intfcaps, intmask;
-	int rc, i, irq_s, irq_e;
+	int rc, i, irq_s, irq_e, probe;
 	struct tpm_chip *chip;
 
 	if (!(chip = tpm_register_hardware(dev, &tpm_tis)))
@@ -540,11 +540,12 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
 		 vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0)));
 
 	if (!itpm) {
-		itpm = probe_itpm(chip);
+		probe = probe_itpm(chip);
-		if (itpm < 0) {
+		if (probe < 0) {
 			rc = -ENODEV;
 			goto out_err;
 		}
+		itpm = (probe == 0) ? 0 : 1;
 	}
 
 	if (itpm)