Patch "tpm xen: Remove bogus tpm_chip_unregister" has been added to the 4.9-stable tree

Patch "tpm xen: Remove bogus tpm_chip_unregister" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    tpm xen: Remove bogus tpm_chip_unregister

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     tpm-xen-remove-bogus-tpm_chip_unregister.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 1f0f30e404b3d8f4597a2d9b77fba55452f8fd0e Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Wed, 26 Oct 2016 16:28:45 -0600
Subject: tpm xen: Remove bogus tpm_chip_unregister

From: Jason Gunthorpe <jgunthorpe@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.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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;
 	}


Patches currently in stable-queue which might be from jgunthorpe@obsidianresearch.com are

queue-4.9/tpm-xen-remove-bogus-tpm_chip_unregister.patch