linux-kernel - Re: [PATCH 07/14] I2C: ali15x3: Do PCI error checks on own line

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Date:   Fri, 25 Aug 2023 11:34:47 +0300 (EEST)
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Andi Shyti <andi.shyti@...nel.org>
cc:     linux-pci@...r.kernel.org, Bjorn Helgaas <helgaas@...nel.org>,
        Jean Delvare <jdelvare@...e.com>, linux-i2c@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 07/14] I2C: ali15x3: Do PCI error checks on own line

On Thu, 24 Aug 2023, Andi Shyti wrote:
> On Thu, Aug 24, 2023 at 04:28:25PM +0300, Ilpo Järvinen wrote:
> > Instead of if conditions with line splits, use the usual error handling
> > pattern with a separate variable to improve readability.
> > 
> > No functional changes intended.
> > 
> > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> > ---
> >  drivers/i2c/busses/i2c-ali15x3.c | 10 +++++-----
> >  1 file changed, 5 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
> > index cc58feacd082..6fedecef9df3 100644
> > --- a/drivers/i2c/busses/i2c-ali15x3.c
> > +++ b/drivers/i2c/busses/i2c-ali15x3.c
> > @@ -122,6 +122,7 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev)
> >  {
> >  	u16 a;
> >  	unsigned char temp;
> > +	int ret;
> 
> can you please add this ret declaration inside the
> "if (force_addr)"?

Sure.

Thanks for taking a look.

-- 
 i.


> >  	/* Check the following things:
> >  		- SMB I/O address is initialized
> > @@ -167,12 +168,11 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev)
> >  	if(force_addr) {
> >  		dev_info(&ALI15X3_dev->dev, "forcing ISA address 0x%04X\n",
> >  			ali15x3_smba);
> > -		if (PCIBIOS_SUCCESSFUL != pci_write_config_word(ALI15X3_dev,
> > -								SMBBA,
> > -								ali15x3_smba))
> > +		ret = pci_write_config_word(ALI15X3_dev, SMBBA, ali15x3_smba);
> > +		if (ret != PCIBIOS_SUCCESSFUL)
> >  			goto error;
> > -		if (PCIBIOS_SUCCESSFUL != pci_read_config_word(ALI15X3_dev,
> > -								SMBBA, &a))
> > +		ret = pci_read_config_word(ALI15X3_dev, SMBBA, &a);
> > +		if (ret != PCIBIOS_SUCCESSFUL)
> >  			goto error;
> >  		if ((a & ~(ALI15X3_SMB_IOSIZE - 1)) != ali15x3_smba) {
> >  			/* make sure it works */