[PATCH 4.4 085/210] tpm_crb: tpm2_shutdown() must be called before tpm_chip_unregister()

From: Greg Kroah-Hartman
Date: Sun Apr 10 2016 - 16:03:19 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

commit 99cda8cb4639de81cde785b5bab9bc52e916e594 upstream.

Wrong call order.

Reported-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
Fixes: 74d6b3ceaa17
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/char/tpm/tpm_crb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -310,11 +310,11 @@ static int crb_acpi_remove(struct acpi_d
struct device *dev = &device->dev;
struct tpm_chip *chip = dev_get_drvdata(dev);

- tpm_chip_unregister(chip);
-
if (chip->flags & TPM_CHIP_FLAG_TPM2)
tpm2_shutdown(chip, TPM2_SU_CLEAR);

+ tpm_chip_unregister(chip);
+
return 0;
}