Messages in this thread | | | Date | Tue, 23 Aug 2011 10:49:51 +1000 (EST) | From | James Morris <> | Subject | Re: tpm: suppress durations sysfs output if not set |
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On Mon, 22 Aug 2011, Stefan Berger wrote:
> Suppress the output of durations if they were not read during driver > initialization. > This is similar to other sysfs entries that return nothing if for some reason > sending the commands to the TPM fails. >
This patch appears to be tab-damaged.
> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> > > --- > drivers/char/tpm/tpm.c | 3 +++ > 1 file changed, 3 insertions(+) > > Index: linux-2.6/drivers/char/tpm/tpm.c > =================================================================== > --- linux-2.6.orig/drivers/char/tpm/tpm.c > +++ linux-2.6/drivers/char/tpm/tpm.c > @@ -963,6 +963,9 @@ ssize_t tpm_show_durations(struct device > { > 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]), >
-- James Morris <jmorris@namei.org>
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