diff options
| author | Ville Syrjälä <ville.syrjala@nokia.com> | 2010-03-17 19:42:06 (GMT) |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-08-03 12:18:46 (GMT) |
| commit | 3d84b65aa63833a2ac07b1cc626984a1e1485fed (patch) | |
| tree | 532d91bff861f241b6cd8e9031a286a557926398 /drivers/video/omap2/omapfb/omapfb-sysfs.c | |
| parent | 2f642a17503838e256b8b7e9f1153512e2efc38b (diff) | |
| download | linux-fsl-qoriq-3d84b65aa63833a2ac07b1cc626984a1e1485fed.tar.xz | |
OMAP: DSS2: OMAPFB: Make lockdep happy
When more than one memory region needs to be lockd at the same time use
the memory region id to fix the order in which the locks are taken. Also
one needs to use the _nested() versions of the locking primitives. The
memory region id can serve as the lock class there as well.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-sysfs.c')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c index 724b760..1e714bb 100644 --- a/drivers/video/omap2/omapfb/omapfb-sysfs.c +++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c @@ -452,7 +452,7 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr, rg = ofbi->region; - down_write(&rg->lock); + down_write_nested(&rg->lock, rg->id); if (atomic_read(&rg->map_count)) { r = -EBUSY; |