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clk: xilinx: Make sure clk_init_data is fully initialized

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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: <cf858f84a9d517745fb53981f02f9c3dcd65a14f.1787239813.git.geert+renesas@glider.be>
Signed-off-by: Brian Masney <bmasney@redhat.com>
This commit is contained in:
Geert Uytterhoeven 2026-08-21 10:53:54 +02:00 committed by Brian Masney
parent cfa82da564
commit c0d0fe4ccf
2 changed files with 4 additions and 4 deletions
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6
drivers/clk/xilinx/clk-xlnx-clock-wizard.c
View File

@ -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);

2
drivers/clk/xilinx/xlnx_vcu.c
View File

@ -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;