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| author | Paul Mundt <lethal@linux-sh.org> | 2009-04-22 09:27:47 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-04-22 09:27:47 +0900 |
| commit | 99ce567ba912109c78762246c964327f3f81f27d (patch) | |
| tree | 685265d60792c11d386db6c005ca8b8e714ecc23 /drivers/gpu/drm/drm_stub.c | |
| parent | 8fb2bae4b41eb64f6e233e9bd3f3a789fbb04a06 (diff) | |
| parent | ccc5ff94c66e628d3c501b26ace5d4339667715d (diff) | |
| download | linux-99ce567ba912109c78762246c964327f3f81f27d.tar.gz linux-99ce567ba912109c78762246c964327f3f81f27d.tar.bz2 linux-99ce567ba912109c78762246c964327f3f81f27d.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/gpu/drm/drm_stub.c')
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index d009661781bc..ef878615c49f 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 +182,15 @@ 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; + + if (!file_priv->minor->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; } |