[PATCH 3.14 36/73] TPM: Add new TPMs to the tail of the list to prevent inadvertent change of dev

2015-03-04 Thread Greg Kroah-Hartman
3.14-stable review patch.  If anyone has any objections, please let me know.

--

From: David Howells 

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 
Reviewed-by: Jason Gunthorpe 
Signed-off-by: Peter Huewe 
Signed-off-by: Greg Kroah-Hartman 

---
 drivers/char/tpm/tpm-interface.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -1122,7 +1122,7 @@ struct tpm_chip *tpm_register_hardware(s
 
/* Make chip available */
spin_lock(_lock);
-   list_add_rcu(>list, _chip_list);
+   list_add_tail_rcu(>list, _chip_list);
spin_unlock(_lock);
 
return chip;


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[PATCH 3.14 36/73] TPM: Add new TPMs to the tail of the list to prevent inadvertent change of dev

2015-03-04 Thread Greg Kroah-Hartman
3.14-stable review patch.  If anyone has any objections, please let me know.

--

From: David Howells dhowe...@redhat.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 dhowe...@redhat.com
Reviewed-by: Jason Gunthorpe jguntho...@obsidianresearch.com
Signed-off-by: Peter Huewe peterhu...@gmx.de
Signed-off-by: Greg Kroah-Hartman gre...@linuxfoundation.org

---
 drivers/char/tpm/tpm-interface.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -1122,7 +1122,7 @@ 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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