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tpm_tis: Check return code from getting timeouts/durations

Check the return code from getting the TPM's timeouts and durations
and reject the driver if they could not be read.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Stefan Berger 13 years ago
parent
commit
7f326ed7ff
1 changed files with 5 additions and 1 deletions
  1. 5 1
      drivers/char/tpm/tpm_tis.c

+ 5 - 1
drivers/char/tpm/tpm_tis.c

@@ -614,7 +614,11 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
 		dev_dbg(dev, "\tData Avail Int Support\n");
 
 	/* get the timeouts before testing for irqs */
-	tpm_get_timeouts(chip);
+	if (tpm_get_timeouts(chip)) {
+		dev_err(dev, "Could not get TPM timeouts and durations\n");
+		rc = -ENODEV;
+		goto out_err;
+	}
 
 	if (tpm_do_selftest(chip)) {
 		dev_err(dev, "TPM self test failed\n");