[PATCH 4.9 77/83] tpm xen: Remove bogus tpm_chip_unregister

[Greg Kroah-Hartman]

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

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

From: Jason Gunthorpe <jguntho...@obsidianresearch.com>

commit 1f0f30e404b3d8f4597a2d9b77fba55452f8fd0e upstream.

tpm_chip_unregister can only be called after tpm_chip_register.
devm manages the allocation so no unwind is needed here.

Fixes: afb5abc262e96 ("tpm: two-phase chip management functions")
Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/char/tpm/xen-tpmfront.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -307,7 +307,6 @@ static int tpmfront_probe(struct xenbus_
        rv = setup_ring(dev, priv);
        if (rv) {
                chip = dev_get_drvdata(&dev->dev);
-               tpm_chip_unregister(chip);
                ring_free(priv);
                return rv;
        }