Re: [PATCH] genirq: fix incorrect proc spurious output

From: Kenji Kaneshige
Date: Wed Dec 01 2010 - 00:26:46 EST


Thank you for reviewing, Yong, Alexey.
I'll resend the patch with cc:ing stable.

Regards,
Kenji Kaneshige


(2010/11/30 19:07), Alexey Dobriyan wrote:
> On Tue, Nov 30, 2010 at 05:08:13PM +0800, Yong Zhang wrote:
>> 2010/11/30 Kenji Kaneshige<kaneshige.kenji@xxxxxxxxxxxxxx>:
>>> Fix the problem that all the /proc/irq/XX/spurious files shows the IRQ
>>> 0 information.
>>>
>>> Current irq_spurious_proc_open() passes on NULL as the 3rd argument,
>>> which is used as an IRQ number in irq_spurious_proc_show(), to the
>>> single_open(). Because of this, all the /proc/irq/XX/spurious file
>>> shows IRQ 0 information regardless of the IRQ number.
>>>
>>> To fix the problem, irq_spurious_proc_open() must pass on the
>>> appropreate data (IRQ number) to single_open().
>>>
>>> Signed-off-by: Kenji Kaneshige<kaneshige.kenji@xxxxxxxxxxxxxx>
>>
>> Looks good.
>>
>> Reviewed-by: Yong Zhang<yong.zhang0@xxxxxxxxx>
>>
>> BTW, it's introduced by a1afb6371bb5341057056194d1168753f6d77242
>> So should we Cc'ing stable?
>
> Definitely.
>
>>> static int irq_spurious_proc_open(struct inode *inode, struct file *file)
>>> {
>>> - return single_open(file, irq_spurious_proc_show, NULL);
>>> + return single_open(file, irq_spurious_proc_show, PDE(inode)->data);
>>> }
>
>


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