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Re: [PATCH] ath10k: spectral: Simplify error checking

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On 13/10/17 12:28:50 +0000, Kalle Valo wrote:
> Christos Gkekas <chris.gekas@xxxxxxxxx> writes:
> 
> > Variable val is unsigned so checking whether it is less than zero is
> > redundant.
> >
> > Signed-off-by: Christos Gkekas <chris.gekas@xxxxxxxxx>
> > ---
> >  drivers/net/wireless/ath/ath10k/spectral.c | 5 +----
> >  1 file changed, 1 insertion(+), 4 deletions(-)
> >
> > diff --git a/drivers/net/wireless/ath/ath10k/spectral.c b/drivers/net/wireless/ath/ath10k/spectral.c
> > index dd9cc09..1867937 100644
> > --- a/drivers/net/wireless/ath/ath10k/spectral.c
> > +++ b/drivers/net/wireless/ath/ath10k/spectral.c
> > @@ -403,10 +403,7 @@ static ssize_t write_file_spectral_count(struct file *file,
> >  		return -EFAULT;
> >  
> >  	buf[len] = '\0';
> > -	if (kstrtoul(buf, 0, &val))
> > -		return -EINVAL;
> > -
> > -	if (val < 0 || val > 255)
> > +	if (kstrtoul(buf, 0, &val) || val > 255)
> >  		return -EINVAL;
> 
> Removing the check for negative is correct but I don't think you are
> simplifying anything, on the contrary it's harder to read. Please keep
> the two if statements separate.
> 
> -- 
> Kalle Valo

You are right, will make the change and send a new patch.
Thanks for your time.

Christos Gkekas




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