Re: [PATCH] drm/bridge: synopsys: dw-dp: return when attach bridge fail
From: Osama Abdelkader
Date: Wed Dec 31 2025 - 09:38:19 EST
On Wed, Dec 31, 2025 at 03:09:51PM +0100, Luca Ceresoli wrote:
> On Fri Dec 26, 2025 at 11:32 PM CET, Osama Abdelkader wrote:
> > When drm_bridge_attach() fails, the function should return an error
> > instead of continuing execution.
> >
> > Signed-off-by: Osama Abdelkader <osama.abdelkader@xxxxxxxxx>
>
> Looks like a bugfix, should it have a 'Fixes:' tag and 'Cc: stable@...'?
> See https://docs.kernel.org/process/submitting-patches.html
>
> > --- a/drivers/gpu/drm/bridge/synopsys/dw-dp.c
> > +++ b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
> > @@ -2062,8 +2062,10 @@ struct dw_dp *dw_dp_bind(struct device *dev, struct drm_encoder *encoder,
> > }
> >
> > ret = drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
> > - if (ret)
> > + if (ret) {
> > dev_err_probe(dev, ret, "Failed to attach bridge\n");
> > + return ERR_PTR(ret);
> > + }
> >
> > dw_dp_init_hw(dp);
> >
>
> It could be more concise, without adding braces:
>
> if (ret)
> return ERR_PTR(dev_err_probe(dev, ret, "Failed to attach bridge\n"));
>
> Luca
>
> --
> Luca Ceresoli, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
Thanks, v2 is on the way.
Best regards,
Osama