tree 3ef9b02ee38d547cf00a7400186deee87e117214
parent a9e8d70c1ac6c9ccf6852c91e082e28249564e6e
author Rob Clark <rob@ti.com> 1326933182 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1328739252 -0800

staging: drm/omap: fix locking issue

The create/free mmap offset code must be synchronized.  Yet only some
callers of omap_gem_mmap_offset() held struct_mutex.  Leading to various
crashes around drm_mm_insert_helper_range().  (In the free-object path,
which is currently the only place we drm_gem_free_mmap_offset(),
struct_mutex is already held.)

Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>