From e317326d1755ea054b98e7a4833b929157461c35 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 19 Aug 2026 21:05:17 +0200 Subject: [PATCH] hwmon: (ltc4282) 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. ltc428_clk_provider_setup() does not fill in any parent clocks, and assumes that init.num_parents 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: cbc29538dbf7d740 ("hwmon: Add driver for LTC4282") Signed-off-by: Geert Uytterhoeven Link: https://patch.msgid.link/8ec3c5cbd2df675a938f090470f5da5f22008517.1787165329.git.geert+renesas@glider.be Reviewed-by: Brian Masney Signed-off-by: Guenter Roeck --- drivers/hwmon/ltc4282.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c index b1675dc5b3c7..54ba4b8542e9 100644 --- a/drivers/hwmon/ltc4282.c +++ b/drivers/hwmon/ltc4282.c @@ -1106,7 +1106,7 @@ static const struct clk_ops ltc4282_ops = { static int ltc428_clk_provider_setup(struct ltc4282_state *st, struct device *dev) { - struct clk_init_data init; + struct clk_init_data init = {}; int ret; if (!IS_ENABLED(CONFIG_COMMON_CLK))