releases/4.4.103/clk-ti-dra7-atl-clock-fix-of_node-reference-counting.patch

   1 From 660e1551939931657808d47838a3f443c0e83fd0 Mon Sep 17 00:00:00 2001
   2 From: Peter Ujfalusi <peter.ujfalusi@ti.com>
   3 Date: Fri, 11 Mar 2016 16:13:32 +0200
   4 Subject: clk: ti: dra7-atl-clock: Fix of_node reference counting
   5
   6 From: Peter Ujfalusi <peter.ujfalusi@ti.com>
   7
   8 commit 660e1551939931657808d47838a3f443c0e83fd0 upstream.
   9
  10 of_find_node_by_name() will call of_node_put() on the node so we need to
  11 get it first to avoid warnings.
  12 The cfg_node needs to be put after we have finished processing the
  13 properties.
  14
  15 Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
  16 Tested-by: Nishanth Menon <nm@ti.com>
  17 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  19
  20 ---
  21  drivers/clk/ti/clk-dra7-atl.c |    2 ++
  22  1 file changed, 2 insertions(+)
  23
  24 --- a/drivers/clk/ti/clk-dra7-atl.c
  25 +++ b/drivers/clk/ti/clk-dra7-atl.c
  26 @@ -265,6 +265,7 @@ static int of_dra7_atl_clk_probe(struct
  27
  28                 /* Get configuration for the ATL instances */
  29                 snprintf(prop, sizeof(prop), "atl%u", i);
  30 +               of_node_get(node);
  31                 cfg_node = of_find_node_by_name(node, prop);
  32                 if (cfg_node) {
  33                         ret = of_property_read_u32(cfg_node, "bws",
  34 @@ -278,6 +279,7 @@ static int of_dra7_atl_clk_probe(struct
  35                                 atl_write(cinfo, DRA7_ATL_AWSMUX_REG(i),
  36                                           cdesc->aws);
  37                         }
  38 +                       of_node_put(cfg_node);
  39                 }
  40
  41                 cdesc->probed = true;