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SubjectRe: [PATCH] mfd: mt6360: Fix register driver NULL pointer by add driver name
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On 09/06/2020 13:43, Gene Chen wrote:
> Lee Jones <lee.jones@linaro.org> 於 2020年6月9日 週二 上午3:28寫道:
>>
>> On Mon, 08 Jun 2020, Gene Chen wrote:
>>
>>> From: Gene Chen <gene_chen@richtek.com>
>>>
>>> accidentally remove driver name when
>>> replace probe by probe_new in add mt6360 mfd driver patch v4
>>>
>>> [ 121.243012] EAX: c2a8bc64 EBX: 00000000 ECX: 00000000 EDX: 00000000
>>> [ 121.243012] ESI: c2a8bc79 EDI: 00000000 EBP: e54bdea8 ESP: e54bdea0
>>> [ 121.243012] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010286
>>> [ 121.243012] CR0: 80050033 CR2: 00000000 CR3: 02ec3000 CR4: 000006b0
>>> [ 121.243012] Call Trace:
>>> [ 121.243012] kset_find_obj+0x3d/0xc0
>>> [ 121.243012] driver_find+0x16/0x40
>>> [ 121.243012] driver_register+0x49/0x100
>>> [ 121.243012] ? i2c_for_each_dev+0x39/0x50
>>> [ 121.243012] ? __process_new_adapter+0x20/0x20
>>> [ 121.243012] ? cht_wc_driver_init+0x11/0x11
>>> [ 121.243012] i2c_register_driver+0x30/0x80
>>> [ 121.243012] ? intel_lpss_pci_driver_init+0x16/0x16
>>> [ 121.243012] mt6360_pmu_driver_init+0xf/0x11
>>> [ 121.243012] do_one_initcall+0x33/0x1a0
>>> [ 121.243012] ? parse_args+0x1eb/0x3d0
>>> [ 121.243012] ? __might_sleep+0x31/0x90
>>> [ 121.243012] ? kernel_init_freeable+0x10a/0x17f
>>> [ 121.243012] kernel_init_freeable+0x12c/0x17f
>>> [ 121.243012] ? rest_init+0x110/0x110
>>> [ 121.243012] kernel_init+0xb/0x100
>>> [ 121.243012] ? schedule_tail_wrapper+0x9/0xc
>>> [ 121.243012] ret_from_fork+0x19/0x24
>>> [ 121.243012] Modules linked in:
>>> [ 121.243012] CR2: 0000000000000000
>>> [ 121.243012] random: get_random_bytes called from init_oops_id+0x3a/0x40 with crng_init=0
>>> [ 121.243012] ---[ end trace 38a803400f1a2bee ]---
>>> [ 121.243012] EIP: strcmp+0x11/0x30
>>
>> How did this driver ever work for you?
>>
>
> i ask my coworker help me verify.
> i will check the patch myself, sincerely apologies for this.
>

BTW for which SoC this PMIC is used for?
Maybe it would be useful to have some development HW to be able to verify patches.

Regards,
Matthias

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