clk: uniphier: Make sure clk_init_data is fully initialized

The clk_init_data structure contains several mutually-exclusive members
for different methods to specify the possible parents of a clock,
prompting drivers to initialize only the members they need.  However,
not initializing all members may cause subtle issues, which are only
exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is
enabled.

Make sure all members are fully initialized, to avoid such bugs, and to
prevent future breakage when converting drivers to a different method
for specifying the parents.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-ID: <491e41d759cec667d6bcd742673e1fec70b4bc31.1787239813.git.geert+renesas@glider.be>
Signed-off-by: Brian Masney <bmasney@redhat.com>

drivers/clk/uniphier/clk-uniphier-cpugear.c

@@ -79,7 +79,7 @@ struct clk_hw *uniphier_clk_register_cpugear(struct device *dev,
 				const struct uniphier_clk_cpugear_data *data)
 {
 	struct uniphier_clk_cpugear *gear;
-	struct clk_init_data init;
+	struct clk_init_data init = {};
 	int ret;
 
 	gear = devm_kzalloc(dev, sizeof(*gear), GFP_KERNEL);

drivers/clk/uniphier/clk-uniphier-fixed-factor.c

@@ -13,8 +13,8 @@ struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
 						  const char *name,
 			const struct uniphier_clk_fixed_factor_data *data)
 {
+	struct clk_init_data init = {};
 	struct clk_fixed_factor *fix;
-	struct clk_init_data init;
 	int ret;
 
 	fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);

drivers/clk/uniphier/clk-uniphier-fixed-rate.c

@@ -13,8 +13,8 @@ struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev,
 						const char *name,
 				const struct uniphier_clk_fixed_rate_data *data)
 {
+	struct clk_init_data init = {};
 	struct clk_fixed_rate *fixed;
-	struct clk_init_data init;
 	int ret;
 
 	/* allocate fixed-rate clock */

drivers/clk/uniphier/clk-uniphier-gate.c

@@ -61,8 +61,8 @@ struct clk_hw *uniphier_clk_register_gate(struct device *dev,
 					  const char *name,
 				const struct uniphier_clk_gate_data *data)
 {
+	struct clk_init_data init = {};
 	struct uniphier_clk_gate *gate;
-	struct clk_init_data init;
 	int ret;
 
 	gate = devm_kzalloc(dev, sizeof(*gate), GFP_KERNEL);

drivers/clk/uniphier/clk-uniphier-mux.c

@@ -58,8 +58,8 @@ struct clk_hw *uniphier_clk_register_mux(struct device *dev,
 					 const char *name,
 				const struct uniphier_clk_mux_data *data)
 {
+	struct clk_init_data init = {};
 	struct uniphier_clk_mux *mux;
-	struct clk_init_data init;
 	int ret;
 
 	mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);