X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Ftpm%2Ftpm.c;h=361a1dff8f772e9d1aa2d855300046ca50291c03;hb=68e24ba70465b82ad24e0774ceab5360180d4627;hp=9ca5c021d0b6c1bf85b0984a991975b9eb0fcdfe;hpb=06afb1a087d49ae0f676b2e5b9ffe5f4b3aba355;p=pandora-kernel.git

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 9ca5c021d0b6..361a1dff8f77 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -966,6 +966,9 @@ ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr,
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
+	if (chip->vendor.duration[TPM_LONG] == 0)
+		return 0;
+
 	return sprintf(buf, "%d %d %d [%s]\n",
 		       jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]),
 		       jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]),