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fcc9021343
Right now, drm_sysfs_create() returns the newly allocated "struct class" to the caller (which is drm_core_init()), which then has to set the global variable 'drm_class'. During cleanup, though, we call drm_sysfs_destroy() which implicitly uses the global 'drm_class'. This is confusing, as ownership of the global 'drm_class' is non-obvious. This patch changes drm_sysfs_create() to drm_sysfs_init() and makes it initialize the 'drm_class' object directly, rather than returning it. This way, both drm_sysfs_init() and drm_sysfs_destroy() work in a similar fashion and manage the global drm class. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
131 lines
4.8 KiB
C
131 lines
4.8 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* drm_irq.c */
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extern unsigned int drm_timestamp_monotonic;
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/* drm_fops.c */
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extern struct mutex drm_global_mutex;
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int drm_lastclose(struct drm_device *dev);
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/* drm_pci.c */
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int drm_pci_set_unique(struct drm_device *dev,
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struct drm_master *master,
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struct drm_unique *u);
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int drm_irq_by_busid(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* drm_vm.c */
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int drm_vma_info(struct seq_file *m, void *data);
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void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
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void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
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/* drm_prime.c */
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int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
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void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
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void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
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struct dma_buf *dma_buf);
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/* drm_info.c */
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int drm_name_info(struct seq_file *m, void *data);
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int drm_vm_info(struct seq_file *m, void *data);
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int drm_bufs_info(struct seq_file *m, void *data);
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int drm_clients_info(struct seq_file *m, void* data);
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int drm_gem_name_info(struct seq_file *m, void *data);
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/* drm_irq.c */
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int drm_control(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_modeset_ctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* drm_auth.c */
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int drm_getmagic(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_authmagic(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* drm_sysfs.c */
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extern struct class *drm_class;
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int drm_sysfs_init(void);
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void drm_sysfs_destroy(void);
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struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
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int drm_sysfs_connector_add(struct drm_connector *connector);
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void drm_sysfs_connector_remove(struct drm_connector *connector);
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/* drm_gem.c */
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int drm_gem_init(struct drm_device *dev);
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void drm_gem_destroy(struct drm_device *dev);
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int drm_gem_handle_create_tail(struct drm_file *file_priv,
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struct drm_gem_object *obj,
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u32 *handlep);
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int drm_gem_close_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_gem_open_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
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void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
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/* drm_drv.c */
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int drm_setmaster_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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struct drm_master *drm_master_create(struct drm_minor *minor);
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/* drm_debugfs.c */
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#if defined(CONFIG_DEBUG_FS)
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int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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struct dentry *root);
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int drm_debugfs_cleanup(struct drm_minor *minor);
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int drm_debugfs_connector_add(struct drm_connector *connector);
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void drm_debugfs_connector_remove(struct drm_connector *connector);
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#else
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static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
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struct dentry *root)
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{
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return 0;
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}
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static inline int drm_debugfs_cleanup(struct drm_minor *minor)
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{
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return 0;
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}
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static inline int drm_debugfs_connector_add(struct drm_connector *connector)
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{
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return 0;
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}
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static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
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{
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}
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#endif
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