clk: versatile: 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>
Acked-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Message-ID: <7c480e73222bb51982fb82dc0cc6cd503f2e8b92.1787239813.git.geert+renesas@glider.be>
Signed-off-by: Brian Masney <bmasney@redhat.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c
index 6bd3db54dd22..97a1bfd6cf0e 100644
--- a/drivers/clk/versatile/clk-icst.c
+++ b/drivers/clk/versatile/clk-icst.c
@@ -360,8 +360,8 @@ struct clk *icst_clk_setup(struct device *dev,
 {
 	struct clk *clk;
 	struct clk_icst *icst;
-	struct clk_init_data init;
 	struct icst_params *pclone;
+	struct clk_init_data init = {};
 
 	icst = kzalloc_obj(*icst);
 	if (!icst)
diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c
index b0e69686f7a9..28e5c0cf1fda 100644
--- a/drivers/clk/versatile/clk-sp810.c
+++ b/drivers/clk/versatile/clk-sp810.c
@@ -86,7 +86,7 @@ static void __init clk_sp810_of_setup(struct device_node *node)
 	const char *parent_names[2];
 	int num = ARRAY_SIZE(parent_names);
 	char name[12];
-	struct clk_init_data init;
+	struct clk_init_data init = {};
 	static int instance;
 	int i;
 	bool deprecated;
diff --git a/drivers/clk/versatile/clk-vexpress-osc.c b/drivers/clk/versatile/clk-vexpress-osc.c
index 9adbf5c33bd1..72e872ec6b7c 100644
--- a/drivers/clk/versatile/clk-vexpress-osc.c
+++ b/drivers/clk/versatile/clk-vexpress-osc.c
@@ -64,7 +64,7 @@ static const struct clk_ops vexpress_osc_ops = {
 
 static int vexpress_osc_probe(struct platform_device *pdev)
 {
-	struct clk_init_data init;
+	struct clk_init_data init = {};
 	struct vexpress_osc *osc;
 	u32 range[2];
 	int ret;