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Date: Tue, 05 May 2015 02:16:39 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org,
"Jason Gunthorpe" <jgunthorpe@...idianresearch.com>,
"Peter Huewe" <peterhuewe@....de>,
"David Howells" <dhowells@...hat.com>
Subject: [PATCH 3.2 011/221] TPM: Add new TPMs to the tail of the list to
prevent inadvertent change of dev
3.2.69-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: David Howells <dhowells@...hat.com>
commit 398a1e71dc827b994b7f2f56c7c2186fea7f8d75 upstream.
Add newly registered TPMs to the tail of the list, not the beginning, so that
things that are specifying TPM_ANY_NUM don't find that the device they're
using has inadvertently changed. Adding a second device would break IMA, for
instance.
Signed-off-by: David Howells <dhowells@...hat.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Signed-off-by: Peter Huewe <peterhuewe@....de>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
drivers/char/tpm/tpm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1341,7 +1341,7 @@ struct tpm_chip *tpm_register_hardware(s
/* Make chip available */
spin_lock(&driver_lock);
- list_add_rcu(&chip->list, &tpm_chip_list);
+ list_add_tail_rcu(&chip->list, &tpm_chip_list);
spin_unlock(&driver_lock);
return chip;
--
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