Yang Yingliang <yangyingliang@xxxxxxxxxx> writes:
> Set error return code to -ENOMEM, when kmalloc() fails.
>
> Fixes: ad3232df3e41 ("mm/memory_hotplug: embed vmem_altmap details in memory block")
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
> ---
> mm/memory_hotplug.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
> index f8d3e7427e32..1b03f4ec6fd2 100644
> --- a/mm/memory_hotplug.c
> +++ b/mm/memory_hotplug.c
> @@ -1440,8 +1440,10 @@ int __ref add_memory_resource(int nid, struct resource *res, mhp_t mhp_flags)
> if (mhp_supports_memmap_on_memory(size)) {
> mhp_altmap.free = memory_block_memmap_on_memory_pages();
> params.altmap = kmalloc(sizeof(struct vmem_altmap), GFP_KERNEL);
> - if (!params.altmap)
> + if (!params.altmap) {
> + ret = -ENOMEM;
> goto error;
> + }
>
> memcpy(params.altmap, &mhp_altmap, sizeof(mhp_altmap));
> }
> --
> 2.25.1
