Re: [PATCH 05/10] mm: check kmalloc() return value
From: Pekka Enberg
Date: Wed Jul 28 2010 - 12:53:16 EST
On Wed, Jul 28, 2010 at 7:40 PM, Kulikov Vasiliy <segooon@xxxxxxxxx> wrote:
> kmalloc() may fail, if so return -ENOMEM.
>
> Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
> ---
> mm/vmalloc.c | 5 ++++-
> 1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index b7e314b..f63684a 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -2437,8 +2437,11 @@ static int vmalloc_open(struct inode *inode, struct file *file)
> unsigned int *ptr = NULL;
> int ret;
>
> - if (NUMA_BUILD)
> + if (NUMA_BUILD) {
> ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
> + if (ptr == NULL)
> + return -ENOMEM;
> + }
> ret = seq_open(file, &vmalloc_op);
> if (!ret) {
> struct seq_file *m = file->private_data;
> --
> 1.7.0.4
>
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