[PATCH 44/45] clk: xilinx: Make sure clk_init_data is fully initialized

[Geert Uytterhoeven]

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 at glider.be>
---
Compile-tested only.
---
 drivers/clk/xilinx/clk-xlnx-clock-wizard.c | 6 +++---
 drivers/clk/xilinx/xlnx_vcu.c              | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
index edf8c0eaca27cab4..4e5b9cb3754b9a18 100644
--- a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
+++ b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
@@ -936,9 +936,9 @@ static struct clk_hw *clk_wzrd_register_divf(struct device *dev,
 					  u32 div_type,
 					  spinlock_t *lock)
 {
+	struct clk_init_data init = {};
 	struct clk_wzrd_divider *div;
 	struct clk_hw *hw;
-	struct clk_init_data init;
 	int ret;
 
 	div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
@@ -980,9 +980,9 @@ static struct clk_hw *clk_wzrd_ver_register_divider(struct device *dev,
 						 u32 div_type,
 						 spinlock_t *lock)
 {
+	struct clk_init_data init = {};
 	struct clk_wzrd_divider *div;
 	struct clk_hw *hw;
-	struct clk_init_data init;
 	int ret;
 
 	div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
@@ -1026,9 +1026,9 @@ static struct clk_hw *clk_wzrd_register_divider(struct device *dev,
 					     u32 div_type,
 					     spinlock_t *lock)
 {
+	struct clk_init_data init = {};
 	struct clk_wzrd_divider *div;
 	struct clk_hw *hw;
-	struct clk_init_data init;
 	int ret;
 
 	div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
diff --git a/drivers/clk/xilinx/xlnx_vcu.c b/drivers/clk/xilinx/xlnx_vcu.c
index f14bda375e353e6a..ccd9d7c0b18098a5 100644
--- a/drivers/clk/xilinx/xlnx_vcu.c
+++ b/drivers/clk/xilinx/xlnx_vcu.c
@@ -406,9 +406,9 @@ static struct clk_hw *xvcu_register_pll(struct device *dev,
 					const char *name, const char *parent,
 					unsigned long flags)
 {
+	struct clk_init_data init = {};
 	struct vcu_pll *pll;
 	struct clk_hw *hw;
-	struct clk_init_data init;
 	int ret;
 
 	init.name = name;
-- 
2.43.0