# Re: \[PATCH 2/5\] video: ARM CLCD: fix endpoint lookup logic

- From: Linus Walleij \<hidden\>
- Date: 2016-08-29 13:19:01 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2016/08/4824096
- Thread: https://ratatoskr.run/linux-fbdev/2016/08/4823044/t.md

```text
On Fri, Aug 26, 2016 at 5:25 PM, Arnd Bergmann [ref] wrote:

[I don't see why Torvalds was CC'ed on this patch? Was there
some specific complaint from his side that I screw things up
or just the wrong Linus?]

> The addition of the Nomadik support in this driver introduced
> a bug in clcdfb_of_init_display(), which now calls init_panel
> with an uninitialized 'endpoint' pointer, as "gcc -Wmaybe-uninitialized"
> warns:
>
> drivers/video/fbdev/amba-clcd.c: In function 'clcdfb_of_init_display':
> drivers/video/fbdev/amba-clcd.c:785:5: error: 'endpoint' may be used uninitialized in this function [-Werror=maybe-uninitialized]
>
> This reverts the broken part of the function to what it was before
> the patch, which is the best guess I have to what it should be.
> I assume this was left over from an attempted rework of the
> code that was partially backed out.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Fixes: 046ad6cdeb3f ("video: ARM CLCD: support Nomadik variant")
> Cc: Linus Walleij <redacted>

Reviewed-by: Linus Walleij <redacted>

Tomi: I think this bug was also reported by Ian King, so suggest
adding his
Reported-by: Colin Ian King <redacted>

When applying.

Yours,
Linus Walleij
```