Chenyuan Yang 0dd6770a72 w1: fix NULL pointer dereference in probe ... The w1_uart_probe() function calls w1_uart_serdev_open() (which includes devm_serdev_device_open()) before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384e ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via w1_uart_serdev_open(). Fixes: a3c0880436 ("w1: add UART w1 bus driver") Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com> Acked-by: Christoph Winklhofer <cj.winklhofer@gmail.com> Link: https://lore.kernel.org/r/20250111181803.2283611-1-chenyuan0y@gmail.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>		2025-02-03 12:52:49 +01:00
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amd_axi_w1.c	Get rid of 'remove_new' relic from platform driver struct	2024-12-01 15:12:43 -08:00
ds2482.c	w1: ds2482: Fix datasheet URL	2024-12-03 15:53:29 +01:00
ds2490.c	w1: ds2490: support block sizes larger than 128 bytes in ds_read_block	2023-12-20 09:25:23 +01:00
Kconfig	w1: add UART w1 bus driver	2024-02-15 15:02:33 +01:00
Makefile	w1: add UART w1 bus driver	2024-02-15 15:02:33 +01:00
matrox_w1.c	w1: matrox: remove unnecessary ENOMEM messages	2023-04-20 14:15:07 +02:00
mxc_w1.c	Get rid of 'remove_new' relic from platform driver struct	2024-12-01 15:12:43 -08:00
omap_hdq.c	Get rid of 'remove_new' relic from platform driver struct	2024-12-01 15:12:43 -08:00
sgi_w1.c	Get rid of 'remove_new' relic from platform driver struct	2024-12-01 15:12:43 -08:00
w1-gpio.c	Get rid of 'remove_new' relic from platform driver struct	2024-12-01 15:12:43 -08:00
w1-uart.c	w1: fix NULL pointer dereference in probe	2025-02-03 12:52:49 +01:00