diff options
| author | Amit Pundir <amit.pundir@linaro.org> | 2017-11-20 20:53:19 +0530 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2017-11-20 20:53:19 +0530 |
| commit | 839f2491691c12aaf002572d5ba4558ab01aeedf (patch) | |
| tree | f7050611c7594b857ff951383e28ed3800f8fb1e /kernel/locking | |
| parent | a717135c23fa60cfaf0c3768e8e72383237ce88d (diff) | |
| parent | ffd95f430f715eb4b86e158a4cff2db55e0d86f8 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts due to AOSP's backported commits:
fs/f2fs/crypto.c
fs/f2fs/crypto_fname.c
Deleted by AOSP commit c1286ff41c2f ("f2fs: backport from (4c1fad64 -
Merge tag 'for-f2fs-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs)")
fs/f2fs/crypto_key.c
fs/f2fs/data.c
fs/f2fs/file.c
AOSP commit 13f002354db1 ("f2fs: catch up to v4.14-rc1")
override most of stable 4.4.y changes.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/lockdep.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 60ace56618f6..0e2c4911ba61 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -3128,10 +3128,17 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, if (depth) { hlock = curr->held_locks + depth - 1; if (hlock->class_idx == class_idx && nest_lock) { - if (hlock->references) + if (hlock->references) { + /* + * Check: unsigned int references:12, overflow. + */ + if (DEBUG_LOCKS_WARN_ON(hlock->references == (1 << 12)-1)) + return 0; + hlock->references++; - else + } else { hlock->references = 2; + } return 1; } |