qoriq_tmu_probe -> qoriq_tmu_register_tmu_zone -> devfreq_cooling_register: return 0 sensor->cdev->type: crash
the fix codes come from: https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/include/linux/device_cooling.h Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 pc : qoriq_tmu_probe+0x568/0x5b0 lr : qoriq_tmu_probe+0x440/0x5b0 Call trace: qoriq_tmu_probe+0x568/0x5b0 ... Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Li Wang <li.w...@windriver.com> --- include/linux/device_cooling.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/device_cooling.h b/include/linux/device_cooling.h index 18d9e3b90ed9..f318e22c1472 100644 --- a/include/linux/device_cooling.h +++ b/include/linux/device_cooling.h @@ -33,7 +33,7 @@ int unregister_devfreq_cooling_notifier(struct notifier_block *nb) static inline struct thermal_cooling_device *devfreq_cooling_register(void) { - return NULL; + return ERR_PTR(-EINVAL); } static inline -- 2.35.5
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