Hello Daniel Vetter,
This is a semi-automatic email about new static checker warnings.
The patch 5771551c4877: "drm/gem: Check locking in
drm_gem_object_unreference" from Oct 15, 2015, leads to the following
Smatch complaint:
include/drm/drm_gem.h:147 drm_gem_object_unreference()
warn: variable dereferenced before check 'obj' (see line 145)
include/drm/drm_gem.h
144 {
145 WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
deref.
146
147 if (obj != NULL)
check.
148 kref_put(&obj->refcount, drm_gem_object_free);
149 }
regards,
dan carpenter
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