RE: [Linux-fbdev-devel] [PATCH 1/1 try#2] [VIDEO/FRAMEBUFFER]: add BF52x EZkit Display driver

From: Hennerich, Michael
Date: Mon Mar 10 2008 - 10:36:33 EST




>From: geert@xxxxxxxxxxxxxx [mailto:geert@xxxxxxxxxxxxxx]
>Subject: Re: [Linux-fbdev-devel] [PATCH 1/1 try#2] [VIDEO/FRAMEBUFFER]:
add
>BF52x EZkit Display driver
>
>On Thu, 6 Mar 2008, Bryan Wu wrote:
>> On Wed, Mar 5, 2008 at 11:02 PM, Andrew Morton
>> <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>> > On Thu, 31 Jan 2008 00:49:43 +0800 Bryan Wu <bryan.wu@xxxxxxxxxx>
>wrote:
>> > > + fbinfo =
>> > > + framebuffer_alloc(sizeof(struct bfin_t350mcqbfb_info),
>&pdev->dev);
>> > > + if (!fbinfo) {
>> > > + ret = -ENOMEM;
>> > > + goto out2;
>> > > + }
>
> [...]
>
>> > > + fbinfo->pseudo_palette = kmalloc(sizeof(u32) * 16,
>GFP_KERNEL);
>> > > + if (!fbinfo->pseudo_palette) {
>> > > + printk(KERN_ERR DRIVER_NAME
>> > > + "Fail to allocate pseudo_palette\n");
>> > > +
>> > > + ret = -ENOMEM;
>> > > + goto out4;
>> > > + }
>> > > +
>> > > + memset(fbinfo->pseudo_palette, 0, sizeof(u32) * 16);
>> >
>> > You just invented kzalloc!
>> >
>>
>> Right
>
>Alternatively, you could embed the pseudo palette inside struct
>bfin_t350mcqbfb_info, so it's allocated by the framebuffer_alloc() call
>above.

This makes the most sense.
Bryan is going to send an updated patch, including your and Andrew's
recommendations.

Thanks and best regards,
Michael


>
>Gr{oetje,eeting}s,
>
> Geert
>
>--
>Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-
>m68k.org
>
>In personal conversations with technical people, I call myself a
hacker.
>But
>when I'm talking to journalists I just say "programmer" or something
like
>that.
> -- Linus
Torvalds
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