From: Michael Hunold <m.hunold@gmx.de>

i2c_add_driver() may actually fail, but my driver returns 0 regardless. 
Thanks to Arthur Othieno <a.othieno@bluewin.ch> for this obviously correct
patch.
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>