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| author | Jarek Poplawski <jarkao2@o2.pl> | 2006-12-06 20:36:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:33 -0800 |
| commit | b23984d0a12a4821b2e9712c71550f321eb88bb5 (patch) | |
| tree | c47470186b47e8e53d8c78513d374b38319abea4 /kernel | |
| parent | 910b1b2e6d7d10e1c3bffdd12a90ec82f535f9a5 (diff) | |
| download | lwn-b23984d0a12a4821b2e9712c71550f321eb88bb5.tar.gz lwn-b23984d0a12a4821b2e9712c71550f321eb88bb5.zip | |
[PATCH] lockdep: misc fixes in lockdep.c
- numeric string size replaced with constant in print_lock_name and
print_lockdep_cache,
- return on null pointer in print_lock_dependencies,
- one more lockdep return with 0 with unlocking fix in mark_lock.
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/lockdep.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index f76a24f2ac20..300d61bb314b 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -359,7 +359,7 @@ get_usage_chars(struct lock_class *class, char *c1, char *c2, char *c3, char *c4 static void print_lock_name(struct lock_class *class) { - char str[128], c1, c2, c3, c4; + char str[KSYM_NAME_LEN + 1], c1, c2, c3, c4; const char *name; get_usage_chars(class, &c1, &c2, &c3, &c4); @@ -381,7 +381,7 @@ static void print_lock_name(struct lock_class *class) static void print_lockdep_cache(struct lockdep_map *lock) { const char *name; - char str[128]; + char str[KSYM_NAME_LEN + 1]; name = lock->name; if (!name) @@ -451,7 +451,9 @@ static void print_lock_dependencies(struct lock_class *class, int depth) print_lock_class_header(class, depth); list_for_each_entry(entry, &class->locks_after, entry) { - DEBUG_LOCKS_WARN_ON(!entry->class); + if (DEBUG_LOCKS_WARN_ON(!entry->class)) + return; + print_lock_dependencies(entry->class, depth + 1); printk("%*s ... acquired at:\n",depth,""); @@ -1733,6 +1735,7 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this, debug_atomic_dec(&nr_unused_locks); break; default: + __raw_spin_unlock(&hash_lock); debug_locks_off(); WARN_ON(1); return 0; |