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| author | David Howells <dhowells@redhat.com> | 2011-01-25 17:34:28 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-25 23:58:20 +0100 |
| commit | ceb73c12047b8d543570b23353e7848eb7c540a1 (patch) | |
| tree | a637dc88d418be1b705a66bea375af955bd14e22 /arch/sh/Kconfig | |
| parent | intel_scu_ipcutils: Fix the license tag (diff) | |
| download | linux-ceb73c12047b8d543570b23353e7848eb7c540a1.tar.xz linux-ceb73c12047b8d543570b23353e7848eb7c540a1.zip | |
KEYS: Fix __key_link_end() quota fixup on error
Fix __key_link_end()'s attempt to fix up the quota if an error occurs.
There are two erroneous cases: Firstly, we always decrease the quota if
the preallocated replacement keyring needs cleaning up, irrespective of
whether or not we should (we may have replaced a pointer rather than
adding another pointer).
Secondly, we never clean up the quota if we added a pointer without the
keyring storage being extended (we allocate multiple pointers at a time,
even if we're not going to use them all immediately).
We handle this by setting the bottom bit of the preallocation pointer in
__key_link_begin() to indicate that the quota needs fixing up, which is
then passed to __key_link() (which clears the whole thing) and
__key_link_end().
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh/Kconfig')
0 files changed, 0 insertions, 0 deletions