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| author |   Peter Zijlstra <peterz@infradead.org> | 2010-03-19 01:37:42 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 09:37:30 -0700 |
| commit | 1704f47b50b5d9e1b825e43e1baaf2c5897baf03 (patch) | |
| tree | 60617ff867624f915f75a502f2207de5e586757a /drivers/base | |
| parent | drivers/base: Convert dev->sem to mutex (diff) | |
| download | linux-dev-1704f47b50b5d9e1b825e43e1baaf2c5897baf03.tar.xz linux-dev-1704f47b50b5d9e1b825e43e1baaf2c5897baf03.zip | |
lockdep: Add novalidate class for dev->mutex conversion
The conversion of device->sem to device->mutex resulted in lockdep
warnings. Create a novalidate class for now until the driver folks
come up with separate classes. That way we have at least the basic
mutex debugging coverage.
Add a checkpatch error so the usage is reserved for device->mutex.
[ tglx: checkpatch and compile fix for LOCKDEP=n ]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index cf507a7d200c..4c5be85016b6 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -559,6 +559,7 @@ void device_initialize(struct device *dev) kobject_init(&dev->kobj, &device_ktype); INIT_LIST_HEAD(&dev->dma_pools); mutex_init(&dev->mutex); + lockdep_set_novalidate_class(&dev->mutex); spin_lock_init(&dev->devres_lock); INIT_LIST_HEAD(&dev->devres_head); device_pm_init(dev); |