Re: [PATCH treewide 5/5] spi: amlogic-spisg: 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.

aml_spisg_clk_init() fills in init.parent_data, and assumes that
init.parent_names is NULL.  However, the latter in uninitialized, and
thus may cause a crash.

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

Fixes: cef9991e04aed330 ("spi: Add Amlogic SPISG driver")
Signed-off-by: Geert Uytterhoeven<geert+renesas@glider.be>
---
Compile-tested only.
---
  drivers/spi/spi-amlogic-spisg.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-amlogic-spisg.c b/drivers/spi/spi-amlogic-spisg.c
index afc8af04638d3b6e..9049a87e9d0f2df6 100644
--- a/drivers/spi/spi-amlogic-spisg.c
+++ b/drivers/spi/spi-amlogic-spisg.c

@@ -636,7 +636,7 @@ static int aml_spisg_target_abort(struct spi_controller *ctlr)
  static int aml_spisg_clk_init(struct spisg_device *spisg, void __iomem *base)
  {
         struct device *dev = &spisg->pdev->dev;
-       struct clk_init_data init;
+       struct clk_init_data init = {};
         struct clk_divider *div;
         struct clk_div_table *tbl;
         char name[32];