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authorIlia Mirkin <imirkin@alum.mit.edu>2013-12-05 09:42:49 -0500
committerDave Airlie <airlied@redhat.com>2013-12-13 13:03:50 +1000
commit0f58411d4fd704d8958879fb08751eae3573271b (patch)
treefb5459f2bfd56398029c0184b17a68f8e309035c /drivers/gpu/drm
parent0ca9fff744c8ae22401d1ef10a378588afd55abc (diff)
drm: don't double-free on driver load error
All instances of drm_dev_register are followed by drm_dev_free on failure. Don't free dev->control/render/primary on failure, as they will be freed by drm_dev_free since commit 8f6599da8e (drm: delay minor destruction to drm_dev_free()). Instead unplug them. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Reported-and-tested-by: Bruno Prémont <bonbons@linux-vserver.org> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_stub.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index f53d5246979c..66dd3a001cf1 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -566,11 +566,11 @@ err_unload:
if (dev->driver->unload)
dev->driver->unload(dev);
err_primary_node:
- drm_put_minor(dev->primary);
+ drm_unplug_minor(dev->primary);
err_render_node:
- drm_put_minor(dev->render);
+ drm_unplug_minor(dev->render);
err_control_node:
- drm_put_minor(dev->control);
+ drm_unplug_minor(dev->control);
err_agp:
if (dev->driver->bus->agp_destroy)
dev->driver->bus->agp_destroy(dev);