Hi,

On Wed, Aug 23, 2017 at 04:58:27PM +0300, Sakari Ailus wrote:
> On Wed, Aug 23, 2017 at 03:30:19PM +0200, Arnd Bergmann wrote:
> > A debug printk statement was copied incorrectly into the new
> > csi1 parser code and causes a warning there:
> > 
> > drivers/media/platform/omap3isp/isp.c: In function 'isp_probe':
> > include/linux/dynamic_debug.h:134:3: error: 'i' may be used uninitialized 
> > in this function [-Werror=maybe-uninitialized]
> > 
> > Since there is only one lane, the index is never set. This
> > changes the debug print to always print a zero instead,
> > keeping the original format of the message.
> > 
> > Fixes: 9211434bad30 ("media: omap3isp: Parse CSI1 configuration from the 
> > device tree")
> > Signed-off-by: Arnd Bergmann <[email protected]>
> > ---
> >  drivers/media/platform/omap3isp/isp.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/media/platform/omap3isp/isp.c 
> > b/drivers/media/platform/omap3isp/isp.c
> > index 83aea08b832d..30c825bf80d9 100644
> > --- a/drivers/media/platform/omap3isp/isp.c
> > +++ b/drivers/media/platform/omap3isp/isp.c
> > @@ -2092,7 +2092,7 @@ static int isp_fwnode_parse(struct device *dev, 
> > struct fwnode_handle *fwnode,
> >                     buscfg->bus.ccp2.lanecfg.data[0].pol =
> >                             vep.bus.mipi_csi1.lane_polarity[1];
> >  
> > -                   dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i,
> > +                   dev_dbg(dev, "data lane 0 polarity %u, pos %u\n",
> >                             buscfg->bus.ccp2.lanecfg.data[0].pol,
> >                             buscfg->bus.ccp2.lanecfg.data[0].pos);
> >  
> 
> Thanks! I removed "0 "; CCP2 always has a single lane. The patch is now:
> 
> diff --git a/drivers/media/platform/omap3isp/isp.c 
> b/drivers/media/platform/omap3isp/isp.c
> index 83aea08b832d..1a428fe9f070 100644
> --- a/drivers/media/platform/omap3isp/isp.c
> +++ b/drivers/media/platform/omap3isp/isp.c
> @@ -2092,7 +2092,7 @@ static int isp_fwnode_parse(struct device *dev, struct 
> fwnode_handle *fwnode,
>                       buscfg->bus.ccp2.lanecfg.data[0].pol =
>                               vep.bus.mipi_csi1.lane_polarity[1];
>  
> -                     dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i,
> +                     dev_dbg(dev, "data lane polarity %u, pos %u\n",
>                               buscfg->bus.ccp2.lanecfg.data[0].pol,
>                               buscfg->bus.ccp2.lanecfg.data[0].pos);

Reviewed-by: Sebastian Reichel <[email protected]>

-- Sebastian

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