• Tony Lindgren's avatar
    thermal: ti-soc-thermal: Fix ti_thermal_unregister_cpu_cooling NULL pointer on unload · ba817a8c
    Tony Lindgren authored
    While debugging some PM issues and trying to remove all the loaded modules, I ran
    across the following when unloading ti-soc-thermal:
    
    Unable to handle kernel NULL pointer dereference at virtual address 000000b4
    ...
    [<c08db340>] (kobject_put) from [<bf28954c>] (ti_thermal_unregister_cpu_cooling+0x20/0x28 [ti_soc_thermal])
    [<bf28954c>] (ti_thermal_unregister_cpu_cooling [ti_soc_thermal]) from [<bf287c88>] (ti_bandgap_remove+0x3c/0x104 [ti_soc_thermal])
    [<bf287c88>] (ti_bandgap_remove [ti_soc_thermal]) from [<c0610d48>] (platform_drv_remove+0x24/0x3c)
    [<c0610d48>] (platform_drv_remove) from [<c060f114>] (device_release_driver_internal+0x160/0x208)
    [<c060f114>] (device_release_driver_internal) from [<c060f200>] (driver_detach+0x38/0x6c)
    [<c060f200>] (driver_detach) from [<c060e2d4>] (bus_remove_driver+0x4c/0xa0)
    [<c060e2d4>] (bus_remove_driver) from [<c01f2370>] (SyS_delete_module+0x168/0x238)
    [<c01f2370>] (SyS_delete_module) from [<c0108240>] (ret_fast_syscall+0x0/0x28)
    
    Cc: Keerthy <j-keerthy@ti.com>
    Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
    Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
    ba817a8c
ti-thermal-common.c 6.83 KB