# Re: \[PATCH 3/4\] drivers/video/bf537-lq035.c: Add missing IS\_ERR test

- From: Mike Frysinger \<hidden\>
- Date: 2011-01-24 20:43:31 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2011/01/3669099
- Thread: https://ratatoskr.run/kernel-janitors/2011/01/3669054/t.md

```text
On Monday, January 24, 2011 14:55:21 Julia Lawall wrote:
> lcd_device_register may return ERR_PTR, so a check is added for this value
> before the dereference.  All of the other changes reorganize the error
> handling code in this function to avoid duplicating all of it in the added
> case.
> 
> In the original code, in one case, the global variable fb_buffer was set to
> NULL in error code that appears after this variable is initialized.  This
> is done now in all error handling code that has this property.

Acked-by: Mike Frysinger <redacted>
-mike
```

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