summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/radeon/radeon_fb.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2010-09-27 10:17:17 +0400
committerDave Airlie <airlied@redhat.com>2010-10-01 03:17:44 +0400
commit29d08b3efddca628b0360411ab2b85f7b1723f48 (patch)
treef89a8a3069ebe9828b8a08c4b123f52625bf0bc7 /drivers/gpu/drm/radeon/radeon_fb.c
parent130b9851933e6da636502cd85e1ba8f45f862e8c (diff)
downloadlinux-29d08b3efddca628b0360411ab2b85f7b1723f48.tar.xz
drm/gem: handlecount isn't really a kref so don't make it one.
There were lots of places being inconsistent since handle count looked like a kref but it really wasn't. Fix this my just making handle count an atomic on the object, and have it increase the normal object kref. Now i915/radeon/nouveau drivers can drop the normal reference on userspace object creation, and have the handle hold it. This patch fixes a memory leak or corruption on unload, because the driver had no way of knowing if a handle had been actually added for this object, and the fbcon object needed to know this to clean itself up properly. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fb.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_fb.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index c74a8b20d941..9cdf6a35bc2c 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -94,8 +94,10 @@ static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
ret = radeon_bo_reserve(rbo, false);
if (likely(ret == 0)) {
radeon_bo_kunmap(rbo);
+ radeon_bo_unpin(rbo);
radeon_bo_unreserve(rbo);
}
+ drm_gem_object_handle_unreference(gobj);
drm_gem_object_unreference_unlocked(gobj);
}
@@ -325,8 +327,6 @@ static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfb
{
struct fb_info *info;
struct radeon_framebuffer *rfb = &rfbdev->rfb;
- struct radeon_bo *rbo;
- int r;
if (rfbdev->helper.fbdev) {
info = rfbdev->helper.fbdev;
@@ -338,14 +338,8 @@ static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfb
}
if (rfb->obj) {
- rbo = rfb->obj->driver_private;
- r = radeon_bo_reserve(rbo, false);
- if (likely(r == 0)) {
- radeon_bo_kunmap(rbo);
- radeon_bo_unpin(rbo);
- radeon_bo_unreserve(rbo);
- }
- drm_gem_object_unreference_unlocked(rfb->obj);
+ radeonfb_destroy_pinned_object(rfb->obj);
+ rfb->obj = NULL;
}
drm_fb_helper_fini(&rfbdev->helper);
drm_framebuffer_cleanup(&rfb->base);