This is a note to let you know that I've just added the patch titled power: supply: core: Initialize struct to zero to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: power-supply-core-initialize-struct-to-zero.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 289f08caaed30a4d187f336fd6489171ebd9be14 Author: Linus Walleij <linus.walleij@xxxxxxxxxx> Date: Mon Apr 25 00:13:01 2022 +0200 power: supply: core: Initialize struct to zero [ Upstream commit e56a4be2843c95c08cf8421dc1f8e880cafbaf91 ] As we rely on pointers in the battery info to be zero-initialized such as in the helper function power_supply_supports_vbat2ri() we certainly need to allocate the struct power_supply_battery_info with kzalloc() as well. Else this happens: Unable to handle kernel paging request at virtual address 00280000 (...) PC is at power_supply_vbat2ri+0x50/0x12c LR is at ab8500_fg_battery_resistance+0x34/0x108 Fixes: e9e7d165b4b0 ("power: supply: Support VBAT-to-Ri lookup tables") Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index d925cb137e12..fad5890c899e 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -616,7 +616,7 @@ int power_supply_get_battery_info(struct power_supply *psy, goto out_put_node; } - info = devm_kmalloc(&psy->dev, sizeof(*info), GFP_KERNEL); + info = devm_kzalloc(&psy->dev, sizeof(*info), GFP_KERNEL); if (!info) { err = -ENOMEM; goto out_put_node;