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SubjectRe: [PATCH] pata_ipx4xx_cf: Fix unsigned comparison with less than zero
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On 4/9/21 7:49 PM, Sergei Shtylyov wrote:

>> From: Junlin Yang <yangjunlin@yulong.com>
>>
>> The return from the call to platform_get_irq() is int, it can be
>> a negative error code, however this is being assigned to an unsigned
>> int variable 'irq', so making 'irq' an int, and change the position to
>> keep the code format.
>>
>> ./drivers/ata/pata_ixp4xx_cf.c:168:5-8:
>> WARNING: Unsigned expression compared with zero: irq > 0
>
> I'd understand < 0... but > 0? What tool warned about this issue?
>
>> Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
>> ---
>> drivers/ata/pata_ixp4xx_cf.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
>> index abc0e87..43215a4 100644
>> --- a/drivers/ata/pata_ixp4xx_cf.c
>> +++ b/drivers/ata/pata_ixp4xx_cf.c
>> @@ -135,12 +135,12 @@ static void ixp4xx_setup_port(struct ata_port *ap,
>>
>> static int ixp4xx_pata_probe(struct platform_device *pdev)
>> {
>> - unsigned int irq;
>
> Oops, not sure how I missed that. :-/
> Thanks for fixing my overlook. :-)

Forgot to add my

Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>

> [...]

MBR, Sergei

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