summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/gpu/drm/drm_file.c22
-rw-r--r--drivers/gpu/drm/drm_ioctl.c22
-rw-r--r--include/drm/drm_drv.h2
3 files changed, 34 insertions, 12 deletions
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index b1838a41ad43..83a5bbca6e7e 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -262,6 +262,18 @@ void drm_file_free(struct drm_file *file)
kfree(file);
}
+static void drm_close_helper(struct file *filp)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_device *dev = file_priv->minor->dev;
+
+ mutex_lock(&dev->filelist_mutex);
+ list_del(&file_priv->lhead);
+ mutex_unlock(&dev->filelist_mutex);
+
+ drm_file_free(file_priv);
+}
+
static int drm_setup(struct drm_device * dev)
{
int ret;
@@ -318,8 +330,10 @@ int drm_open(struct inode *inode, struct file *filp)
goto err_undo;
if (need_setup) {
retcode = drm_setup(dev);
- if (retcode)
+ if (retcode) {
+ drm_close_helper(filp);
goto err_undo;
+ }
}
return 0;
@@ -473,11 +487,7 @@ int drm_release(struct inode *inode, struct file *filp)
DRM_DEBUG("open_count = %d\n", dev->open_count);
- mutex_lock(&dev->filelist_mutex);
- list_del(&file_priv->lhead);
- mutex_unlock(&dev->filelist_mutex);
-
- drm_file_free(file_priv);
+ drm_close_helper(filp);
if (!--dev->open_count) {
drm_lastclose(dev);
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 7e6746b2d704..687943df58e1 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -508,6 +508,13 @@ int drm_version(struct drm_device *dev, void *data,
return err;
}
+static inline bool
+drm_render_driver_and_ioctl(const struct drm_device *dev, u32 flags)
+{
+ return drm_core_check_feature(dev, DRIVER_RENDER) &&
+ (flags & DRM_RENDER_ALLOW);
+}
+
/**
* drm_ioctl_permit - Check ioctl permissions against caller
*
@@ -522,14 +529,19 @@ int drm_version(struct drm_device *dev, void *data,
*/
int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
{
+ const struct drm_device *dev = file_priv->minor->dev;
+
/* ROOT_ONLY is only for CAP_SYS_ADMIN */
if (unlikely((flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)))
return -EACCES;
- /* AUTH is only for authenticated or render client */
- if (unlikely((flags & DRM_AUTH) && !drm_is_render_client(file_priv) &&
- !file_priv->authenticated))
- return -EACCES;
+ /* AUTH is only for master ... */
+ if (unlikely((flags & DRM_AUTH) && drm_is_primary_client(file_priv))) {
+ /* authenticated ones, or render capable on DRM_RENDER_ALLOW. */
+ if (!file_priv->authenticated &&
+ !drm_render_driver_and_ioctl(dev, flags))
+ return -EACCES;
+ }
/* MASTER is only for master or control clients */
if (unlikely((flags & DRM_MASTER) &&
@@ -570,7 +582,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_UNLOCKED|DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_UNLOCKED|DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_legacy_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_legacy_rmmap_ioctl, DRM_AUTH),
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index ca46a45a9cce..570f9d03b2eb 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -767,7 +767,7 @@ static inline bool drm_dev_is_unplugged(struct drm_device *dev)
*
* Returns true if the @feature is supported, false otherwise.
*/
-static inline bool drm_core_check_feature(struct drm_device *dev, u32 feature)
+static inline bool drm_core_check_feature(const struct drm_device *dev, u32 feature)
{
return dev->driver->driver_features & dev->driver_features & feature;
}