2020-06-11 17:23:23

by 赵军奎

Subject: [PATCH] drm/mxsfb: miss err handle in probe

There are three err return values in drm_fbdev_generic_setup.
In mxsfb_probe we called this function, but didn`t handle the
return value, this change is to add err handle, maybe make code
a bit more readable.

Signed-off-by: Bernard Zhao <[email protected]>
---
drivers/gpu/drm/mxsfb/mxsfb_drv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index 497cf443a9af..a45f3b85f725 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -415,7 +415,9 @@ static int mxsfb_probe(struct platform_device *pdev)
if (ret)
goto err_unload;

- drm_fbdev_generic_setup(drm, 32);
+ ret = drm_fbdev_generic_setup(drm, 32);
+ if (ret)
+ goto err_unload;

return 0;

--
2.17.1

2020-07-20 08:54:28

by Stefan Agner

Subject: Re: [PATCH] drm/mxsfb: miss err handle in probe

On 2020-06-11 14:23, Bernard Zhao wrote:
> There are three err return values in drm_fbdev_generic_setup.
> In mxsfb_probe we called this function, but didn`t handle the
> return value, this change is to add err handle, maybe make code
> a bit more readable.

This got recently changed, so I guess checking the return value isn't
required anymore:
https://patchwork.freedesktop.org/patch/msgid/[email protected]

--
Stefan

>
> Signed-off-by: Bernard Zhao <[email protected]>
> ---
> drivers/gpu/drm/mxsfb/mxsfb_drv.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> index 497cf443a9af..a45f3b85f725 100644
> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> @@ -415,7 +415,9 @@ static int mxsfb_probe(struct platform_device *pdev)
> if (ret)
> goto err_unload;
>
> - drm_fbdev_generic_setup(drm, 32);
> + ret = drm_fbdev_generic_setup(drm, 32);
> + if (ret)
> + goto err_unload;
>
> return 0;