raspberrypi/linux — pull request #407 by aeickho (2013-10-22 19:20:59+00:00)
Title: w1 - call request_module with w1 master mutex unlocked

request_module for w1 slave modules needs to be called with the w1
master mutex unlocked. Because w1_attach_slave_device gets always(?)
called with mutex locked, we need to temporarily unlock the w1 master
mutex for the loading of the w1 slave module.

Signed-off by: Hans-Frieder Vogt
Acked-by: Evgeniy Polyakov
Cc: stable # 3.11+

Signed-off-by: Greg Kroah-Hartman
(cherry picked from commit bc04d76d6942068f75c10790072280b847ec6f1f)