Re: [PATCH] drivers/video/pmagb-b-fb.c: Improve diagnostics

From: Mariusz Kozlowski
Date: Mon Sep 17 2007 - 14:35:30 EST


Hello,

> Add error messages to the probe call.

You added them but probably forgot to return them ;)

> While they may rarely trigger, they may be useful when something weird is
> going on. Also this is good style.

[snip]

> patch-mips-2.6.18-20060920-pmagb-b-err-1
> diff -up --recursive --new-file linux-mips-2.6.18-20060920.macro/drivers/video/pmagb-b-fb.c linux-mips-2.6.18-20060920/drivers/video/pmagb-b-fb.c
> --- linux-mips-2.6.18-20060920.macro/drivers/video/pmagb-b-fb.c 2006-12-16 16:44:41.000000000 +0000
> +++ linux-mips-2.6.18-20060920/drivers/video/pmagb-b-fb.c 2006-12-16 16:44:52.000000000 +0000
> @@ -254,16 +254,23 @@ static int __init pmagbbfb_probe(struct
> struct pmagbbfb_par *par;
> char freq0[12], freq1[12];
> u32 vid_base;
> + int err = 0;

[snip]

> - if (register_framebuffer(info) < 0)
> + err = register_framebuffer(info);
> + if (err < 0) {
> + printk(KERN_ERR "%s: Cannot register framebuffer\n",
> + dev->bus_id);
> goto err_smem_map;
> + }
>
> get_device(dev);

Sth like this is missing?

@@ -330,7 +350,7 @@ err_cmap:

err_alloc:
framebuffer_release(info);
- return -ENXIO;
+ return err;
}

No?

Regards,

Mariusz
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