drm: Fix up kerneldoc for new drm_gem_dmabuf_export()

I hit send before completing a make htmldoc, and lo I forgot to fix up
the cut'n'paste.

Fixes: a4fce9cb782a ("drm/prime: Take a ref on the drm_dev when exporting...")
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Signed-off-by: Daniel Vetter <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
1 file changed