[PATCH] ARM: dove: fix returnvar.cocci warnings

[Russell King (Oracle)]

On Tue, May 03, 2022 at 10:45:32AM +0800, kernel test robot wrote:
> From: kernel test robot <lkp at intel.com>
> 
> arch/arm/mach-omap2/dma.c:82:10-16: Unneeded variable: "errata". Return "0" on line 161
> 
> 
>  Remove unneeded variable used to store return value.
> 
> Generated by: scripts/coccinelle/misc/returnvar.cocci
> 
> Reported-by: kernel test robot <lkp at intel.com>
> Signed-off-by: kernel test robot <lkp at intel.com>

NAK. The analysis is wrong.

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