clk: ti: dra7-atl-clock: Fix of_node reference counting

BugLink: http://bugs.launchpad.net/bugs/1744873

commit 660e1551 upstream.

of_find_node_by_name() will call of_node_put() on the node so we need to
get it first to avoid warnings.
The cfg_node needs to be put after we have finished processing the
properties.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/clk/ti/clk-dra7-atl.c

@@ -265,6 +265,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
 
 		/* Get configuration for the ATL instances */
 		snprintf(prop, sizeof(prop), "atl%u", i);
+		of_node_get(node);
 		cfg_node = of_find_node_by_name(node, prop);
 		if (cfg_node) {
 			ret = of_property_read_u32(cfg_node, "bws",
@@ -278,6 +279,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
 				atl_write(cinfo, DRA7_ATL_AWSMUX_REG(i),
 					  cdesc->aws);
 			}
+			of_node_put(cfg_node);
 		}
 
 		cdesc->probed = true;