Re: [PATCH] mfd: mt6360: Fix register driver NULL pointer by add driver name
From: Lee Jones
Date: Tue Jun 16 2020 - 04:28:09 EST
On Mon, 08 Jun 2020, Gene Chen wrote:
> From: Gene Chen <gene_chen@xxxxxxxxxxx>
>
> 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
>
> Signed-off-by: Gene Chen <gene_chen@xxxxxxxxxxx>
> ---
> drivers/mfd/mt6360-core.c | 1 +
> 1 file changed, 1 insertion(+)
Applied, thanks.
--
Lee Jones [æçæ]
Senior Technical Lead - Developer Services
Linaro.org â Open source software for Arm SoCs
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