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Subject[PATCH 1/5] drm:drm_stub: add new function drm_cleanup_in_dev
Introduce a new function, drm_cleanup_in_dev,
we could use it to release resources allocated
by drm_fill_in_dev in the error handle code path
after drm_fill_in_dev have been called.

Signed-off-by: Wang YanQing <udknight@gmail.com>
---
drivers/gpu/drm/drm_stub.c | 62 ++++++++++++++++++++++++----------------------
include/drm/drmP.h | 1 +
2 files changed, 33 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 16f3ec5..3f3b167 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -250,6 +250,37 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
return 0;
}

+void drm_cleanup_in_dev(struct drm_device *dev)
+{
+ struct drm_driver *driver;
+ struct drm_map_list *r_list, *list_temp;
+
+ driver = dev->driver;
+ if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
+ dev->agp && dev->agp->agp_mtrr >= 0) {
+ int retval;
+ retval = mtrr_del(dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size * 1024 * 1024);
+ DRM_DEBUG("mtrr_del=%d\n", retval);
+ }
+
+ if (drm_core_has_AGP(dev) && dev->agp) {
+ kfree(dev->agp);
+ dev->agp = NULL;
+ }
+
+ list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+ drm_rmmap(dev, r_list->map);
+ drm_ht_remove(&dev->map_hash);
+
+ drm_ctxbitmap_cleanup(dev);
+
+ if (dev->driver->driver_features & DRIVER_GEM)
+ drm_gem_destroy(dev);
+}
+EXPORT_SYMBOL(drm_cleanup_in_dev);
+
int drm_fill_in_dev(struct drm_device *dev,
const struct pci_device_id *ent,
struct drm_driver *driver)
@@ -438,52 +469,23 @@ static void drm_unplug_minor(struct drm_minor *minor)
*/
void drm_put_dev(struct drm_device *dev)
{
- struct drm_driver *driver;
- struct drm_map_list *r_list, *list_temp;
-
DRM_DEBUG("\n");
-
if (!dev) {
DRM_ERROR("cleanup called no dev\n");
return;
}
- driver = dev->driver;

drm_lastclose(dev);

- if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
- dev->agp && dev->agp->agp_mtrr >= 0) {
- int retval;
- retval = mtrr_del(dev->agp->agp_mtrr,
- dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size * 1024 * 1024);
- DRM_DEBUG("mtrr_del=%d\n", retval);
- }
-
if (dev->driver->unload)
dev->driver->unload(dev);

- if (drm_core_has_AGP(dev) && dev->agp) {
- kfree(dev->agp);
- dev->agp = NULL;
- }
-
drm_vblank_cleanup(dev);
-
- list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
- drm_rmmap(dev, r_list->map);
- drm_ht_remove(&dev->map_hash);
-
- drm_ctxbitmap_cleanup(dev);
+ drm_cleanup_in_dev(dev);

if (drm_core_check_feature(dev, DRIVER_MODESET))
drm_put_minor(&dev->control);
-
- if (driver->driver_features & DRIVER_GEM)
- drm_gem_destroy(dev);
-
drm_put_minor(&dev->primary);
-
list_del(&dev->driver_item);
kfree(dev->devname);
kfree(dev);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 63d17ee..2dcf83a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1761,6 +1761,7 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map)

#include <drm/drm_mem_util.h>

+extern void drm_cleanup_in_dev(struct drm_device *dev);
extern int drm_fill_in_dev(struct drm_device *dev,
const struct pci_device_id *ent,
struct drm_driver *driver);
--
1.7.12.4.dirty

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