diff options
| author | Jonas Bonn <jonas@southpole.se> | 2009-04-16 09:00:02 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-04-20 10:04:28 +1000 |
| commit | 6b0084266c1d4917ad9259759a1e7bd623cb3888 (patch) | |
| tree | 8047608ee68c2f9d9a6d04ccf968308918877310 | |
| parent | 77d26dc9b9805f322f5a1f6e559b18ad66205bd9 (diff) | |
| download | kernel_samsung_smdk4412-6b0084266c1d4917ad9259759a1e7bd623cb3888.tar.gz kernel_samsung_smdk4412-6b0084266c1d4917ad9259759a1e7bd623cb3888.tar.bz2 kernel_samsung_smdk4412-6b0084266c1d4917ad9259759a1e7bd623cb3888.zip | |
drm: set/clear is_master when master changed
The variable is_master is being used to track the drm_file that is currently
master, so its value needs to be updated accordingly when the master is
changed.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index d009661781b..1b3e0ff57b4 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -159,6 +159,9 @@ void drm_master_put(struct drm_master **master) int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { + if (file_priv->is_master) + return 0; + if (file_priv->minor->master && file_priv->minor->master != file_priv->master) return -EINVAL; @@ -169,6 +172,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, file_priv->minor->master != file_priv->master) { mutex_lock(&dev->struct_mutex); file_priv->minor->master = drm_master_get(file_priv->master); + file_priv->is_master = 1; mutex_unlock(&dev->struct_mutex); } @@ -178,10 +182,12 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, int drm_dropmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - if (!file_priv->master) + if (!file_priv->is_master) return -EINVAL; + mutex_lock(&dev->struct_mutex); drm_master_put(&file_priv->minor->master); + file_priv->is_master = 0; mutex_unlock(&dev->struct_mutex); return 0; } |