tpm_tis: fix subsequent suspend failures

commit 59f6fbe429 upstream.

Fix subsequent suspends by issuing tpm_continue_selftest during resume.
Otherwise, the tpm chip seems to be not fully initialized and will reject
the save state command during suspend, thus preventing the whole system
to suspend.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16256

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: David Safford <safford@watson.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Rajiv Andrade
2010-06-23 12:18:56 -07:00
committed by Greg Kroah-Hartman
parent 334bef5003
commit 218d101dc1

View File

@@ -622,7 +622,14 @@ static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg)
static int tpm_tis_pnp_resume(struct pnp_dev *dev)
{
return tpm_pm_resume(&dev->dev);
struct tpm_chip *chip = pnp_get_drvdata(dev);
int ret;
ret = tpm_pm_resume(&dev->dev);
if (!ret)
tpm_continue_selftest(chip);
return ret;
}
static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {