diff options
Diffstat (limited to 'linux-core/drm_fops.c')
| -rw-r--r-- | linux-core/drm_fops.c | 39 |
1 files changed, 18 insertions, 21 deletions
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c index 0e1c486c..7fe274a2 100644 --- a/linux-core/drm_fops.c +++ b/linux-core/drm_fops.c @@ -128,16 +128,15 @@ static int drm_setup(struct drm_device * dev) int drm_open(struct inode *inode, struct file *filp) { struct drm_device *dev = NULL; - int minor = iminor(inode); + int minor_id = iminor(inode); + struct drm_minor *minor; int retcode = 0; - if (!((minor >= 0) && (minor < drm_cards_limit))) + minor = idr_find(&drm_minors_idr, minor_id); + if (!minor) return -ENODEV; - if (!drm_heads[minor]) - return -ENODEV; - - if (!(dev = drm_heads[minor]->dev)) + if (!(dev = minor->dev)) return -ENODEV; retcode = drm_open_helper(inode, filp, dev); @@ -176,19 +175,18 @@ EXPORT_SYMBOL(drm_open); int drm_stub_open(struct inode *inode, struct file *filp) { struct drm_device *dev = NULL; - int minor = iminor(inode); + struct drm_minor *minor; + int minor_id = iminor(inode); int err = -ENODEV; const struct file_operations *old_fops; DRM_DEBUG("\n"); - if (!((minor >= 0) && (minor < drm_cards_limit))) + minor = idr_find(&drm_minors_idr, minor_id); + if (!minor) return -ENODEV; - - if (!drm_heads[minor]) - return -ENODEV; - - if (!(dev = drm_heads[minor]->dev)) + + if (!(dev = minor->dev)) return -ENODEV; old_fops = filp->f_op; @@ -233,7 +231,7 @@ static int drm_cpu_valid(void) static int drm_open_helper(struct inode *inode, struct file *filp, struct drm_device * dev) { - int minor = iminor(inode); + int minor_id = iminor(inode); struct drm_file *priv; int ret; int i, j; @@ -243,7 +241,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp, if (!drm_cpu_valid()) return -EINVAL; - DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor); + DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor_id); priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES); if (!priv) @@ -254,8 +252,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp, priv->filp = filp; priv->uid = current->euid; priv->pid = current->pid; - priv->minor = minor; - priv->head = drm_heads[minor]; + priv->minor = idr_find(&drm_minors_idr, minor_id); priv->ioctl_count = 0; /* for compatibility root is always authenticated */ priv->authenticated = capable(CAP_SYS_ADMIN); @@ -320,11 +317,11 @@ static int drm_open_helper(struct inode *inode, struct file *filp, int drm_fasync(int fd, struct file *filp, int on) { struct drm_file *priv = filp->private_data; - struct drm_device *dev = priv->head->dev; + struct drm_device *dev = priv->minor->dev; int retcode; DRM_DEBUG("fd = %d, device = 0x%lx\n", fd, - (long)old_encode_dev(priv->head->device)); + (long)old_encode_dev(priv->minor->device)); retcode = fasync_helper(fd, filp, on, &dev->buf_async); if (retcode < 0) return retcode; @@ -374,7 +371,7 @@ static void drm_object_release(struct file *filp) int drm_release(struct inode *inode, struct file *filp) { struct drm_file *file_priv = filp->private_data; - struct drm_device *dev = file_priv->head->dev; + struct drm_device *dev = file_priv->minor->dev; int retcode = 0; lock_kernel(); @@ -389,7 +386,7 @@ int drm_release(struct inode *inode, struct file *filp) */ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - current->pid, (long)old_encode_dev(file_priv->head->device), + current->pid, (long)old_encode_dev(file_priv->minor->device), dev->open_count); if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) { |