[U-Boot] [PATCH] fsl_diu: fix alignment error that caused malloc corruption
Wolfgang Denk
wd at denx.de
Tue Oct 14 15:31:05 CEST 2008
Dear "Nikita V. Youshchenko",
In message <200810030003.55574 at blacky.localdomain> you wrote:
>
> commit 81489a85c4c3536ec54290ac9216b746ec346663
> Author: Nikita V. Youshchenko <yoush at debian.org>
> Date: Thu Sep 25 00:44:00 2008 +0400
>
> fsl_diu: fix alignment error that caused malloc corruption
>
> When aligning malloc()ed screen_base, invalid offset was added.
> This not only caused misaligned result (which did not cause hardware
> misbehaviour), but - worse - caused screen_base + smem_len to
> be out of malloc()ed space, which in turn caused breakage of
> futher malloc()/free() operation.
>
> This patch fixes screen_base alignment.
>
> Also this patch makes memset() that cleans framebuffer to be executed
> on first initialization of diu, not only on re-initialization. It looks
> correct to clean the framebuffer instead of displaying random garbage;
> I believe that was disabled only because that memset caused breakage
> of malloc/free described above - which no longer happens with the fix
> described above.
>
> Signed-off-by: Nikita V. Youshchenko <yoush at debian.org>
The indentation of the commit message is wrong.
Please use git-format-patch to create patches.
Applied, thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I haven't lost my mind -- it's backed up on tape somewhere.
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