diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 72fa601..9ed8be2 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -37,6 +37,7 @@ #include "drmP.h" #include <linux/poll.h> #include <linux/slab.h> +#include <linux/module.h> /* from BKL pushdown: note that nothing else serializes idr_find() */ DEFINE_MUTEX(drm_global_mutex); @@ -132,6 +133,9 @@ int drm_open(struct inode *inode, struct file *filp) if (!(dev = minor->dev)) return -ENODEV; + if (drm_device_is_unplugged(dev)) + return -ENODEV; + retcode = drm_open_helper(inode, filp, dev); if (!retcode) { atomic_inc(&dev->counts[_DRM_STAT_OPENS]); @@ -183,8 +187,11 @@ int drm_stub_open(struct inode *inode, struct file *filp) if (!(dev = minor->dev)) goto out; + if (drm_device_is_unplugged(dev)) + goto out; + old_fops = filp->f_op; - filp->f_op = fops_get(&dev->driver->fops); + filp->f_op = fops_get(dev->driver->fops); if (filp->f_op == NULL) { filp->f_op = old_fops; goto out; @@ -581,6 +588,8 @@ int drm_release(struct inode *inode, struct file *filp) retcode = -EBUSY; } else retcode = drm_lastclose(dev); + if (drm_device_is_unplugged(dev)) + drm_put_dev(dev); } mutex_unlock(&drm_global_mutex); |