[PATCH] powerpc: 8xx: fix a return value error in mpc8xx_pic_init

[Hangyu Hua]

Ping?

On 2022/2/23 15:02, Hangyu Hua wrote:
> mpc8xx_pic_init() should return -ENOMEM instead of 0 when
> irq_domain_add_linear() return NULL. This cause mpc8xx_pics_init to continue
> executing even if mpc8xx_pic_host is NULL.
> 
> Fixes: cc76404feaed ("powerpc/8xx: Fix possible device node reference leak")
> Signed-off-by: Hangyu Hua <hbh25y at gmail.com>
> ---
>   arch/powerpc/platforms/8xx/pic.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/powerpc/platforms/8xx/pic.c b/arch/powerpc/platforms/8xx/pic.c
> index f2ba837249d6..04a6abf14c29 100644
> --- a/arch/powerpc/platforms/8xx/pic.c
> +++ b/arch/powerpc/platforms/8xx/pic.c
> @@ -153,6 +153,7 @@ int __init mpc8xx_pic_init(void)
>   	if (mpc8xx_pic_host == NULL) {
>   		printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
>   		ret = -ENOMEM;
> +		goto out;
>   	}
>   
>   	ret = 0;