Re: [PATCH] ARM: OMAP: Fix map_io for Amstrad E3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Nov 09, 2011 at 03:25:25PM -0800, Tony Lindgren wrote:
> Commit 7b88e62f5d219a86d81bdf4388012c97dc42e8f8 (ARM: OMAP1: Use generic
> map_io, init_early and init_irq) changed omap1 to use generic map_io.
> 
> Looks like I missed one board though. Fix this by adding a custom
> map_io for Amstrad E3.
> 
> Reported-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> 
> ---
> Untested, does this help?
> --- a/arch/arm/mach-omap1/board-ams-delta.c
> +++ b/arch/arm/mach-omap1/board-ams-delta.c
> @@ -302,8 +302,6 @@ static void __init ams_delta_init(void)
>  	omap_cfg_reg(J19_1610_CAM_D6);
>  	omap_cfg_reg(J18_1610_CAM_D7);
>  
> -	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
> -

This is definitely wrong.  Using iotable_init() after map_io has returned
has (and remains) a serious bug - doing so may _appear_ to work but as it
doesn't obtain its memory from the standard kernel memory allocators, it
will lead to duplicate usage of that memory.
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux