From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anatolij Gustschin <agust@denx.de>
Date: Tue, 9 Apr 2019 23:03:43 +0200
Subject: [U-Boot] [PATCH 1/8] video/console: Fix DM_VIDEO font glyph
 array indexing
In-Reply-To: <20190323013002.27117-2-andre.przywara@arm.com>
References: <20190323013002.27117-1-andre.przywara@arm.com>
 <20190323013002.27117-2-andre.przywara@arm.com>
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On Sat, 23 Mar 2019 01:29:55 +0000
Andre Przywara andre.przywara at arm.com wrote:

> When the character to be printed on a DM_VIDEO console is from the
> "extended ASCII" range (0x80 - 0xff), it will be treated as a negative
> number, as it's declared as a signed char. This leads to negative array
> indicies into the glyph bitmap array, and random garbled characters.
> 
> Cast the character to an unsigned type to make the index always positive
> and avoid an out-of-bounds access.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  drivers/video/console_normal.c | 3 ++-
>  drivers/video/console_rotate.c | 7 ++++---
>  2 files changed, 6 insertions(+), 4 deletions(-)

Applied (with s/uint8_t/u8/) to u-boot-video/master, thanks!

--
Anatolij