[PATCHv2 3/9] board: lx2160a: Don't program the GIC RD tables if failed to reserve memory

[Wasim Khan <wasim.khan@nxp.com>]

> -----Original Message-----
> From: U-Boot <u-boot-bounces@lists.denx.de> On Behalf Of Zhiqiang Hou
> Sent: Tuesday, March 24, 2020 1:42 PM
> To: u-boot at lists.denx.de; Priyanka Jain <priyanka.jain@nxp.com>; Biwen Li
> <biwen.li@nxp.com>
> Cc: Z.q. Hou <zhiqiang.hou@nxp.com>
> Subject: [PATCHv2 3/9] board: lx2160a: Don't program the GIC RD tables if failed
> to reserve memory
> 
> From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> 
> Program the GIC redistributor tables only when succeeded to reserve memory
> for them, otherwise kernel will lose the chance to program them using allocated
> memory.
> 
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> ---
> V2:
>  - The #4 of v1 patchset.
> 
>  board/freescale/lx2160a/lx2160a.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/board/freescale/lx2160a/lx2160a.c
> b/board/freescale/lx2160a/lx2160a.c
> index 595c774b42..7f22110dc6 100644
> --- a/board/freescale/lx2160a/lx2160a.c
> +++ b/board/freescale/lx2160a/lx2160a.c
> @@ -657,6 +657,7 @@ int ft_board_setup(void *blob, bd_t *bd)
>  	u64 mc_memory_size = 0;
>  	u16 total_memory_banks;
>  	u64 gic_lpi_base;
> +	int ret;
> 
>  	ft_cpu_setup(blob, bd);
> 
> @@ -678,8 +679,9 @@ int ft_board_setup(void *blob, bd_t *bd)
> 
>  #ifdef CONFIG_GIC_V3_ITS
>  	gic_lpi_base = gd->arch.resv_ram - GIC_LPI_SIZE;
> -	gic_lpi_tables_init(gic_lpi_base, cpu_numcores());
> -	fdt_fixup_gic_lpi_memory(blob, gic_lpi_base);
> +	ret = fdt_fixup_gic_lpi_memory(blob, gic_lpi_base);
> +	if (!ret && gic_lpi_tables_init(gic_lpi_base, cpu_numcores()))
> +		debug("%s: failed to init gic-lpi-tables\n", __func__);

Currently till this point, fdt_fixup_gic_lpi_memory return type is void , you may first you need to change fdt_fixup_gic_lpi_memory() to return something and then you can check for the errors. 
OR, no need for this patch, as in your later patches you are already doing error checking . 

>  #endif
> 
>  #ifdef CONFIG_RESV_RAM
> --
> 2.17.1