i2c: add missing of_node_put in i2c_mux_del_adapters
commit 2e1e4949 upstream. Refcount of of_node is increased with of_node_get() in i2c_mux_add_adapter(). It must be decreased with of_node_put() in i2c_mux_del_adapters(). Signed-off-by: Qi Hou <qi.hou@windriver.com> Reviewed-by: Zhang Xiao <xiao.zhang@windriver.com> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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