On Wed, Jun 17, 2015 at 10:12 AM, Jingoo Han <jingoohan1@xxxxxxxxx> wrote:
> When kzalloc() is called under spin_lock(), GFP_ATOMIC should be
> used to avoid sleeping allocation.
> The call tree is:
> of_pci_range_to_resource()
> --> pci_register_io_range() <-- takes spin_lock(&io_range_lock);
> --> kzalloc()
>
> Signed-off-by: Jingoo Han <jingoohan1@xxxxxxxxx>
Applied. Thanks.
Rob
> ---
> drivers/of/address.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/of/address.c b/drivers/of/address.c
> index 78a7dcb..65c3289 100644
> --- a/drivers/of/address.c
> +++ b/drivers/of/address.c
> @@ -712,7 +712,7 @@ int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size)
> }
>
> /* add the range to the list */
> - range = kzalloc(sizeof(*range), GFP_KERNEL);
> + range = kzalloc(sizeof(*range), GFP_ATOMIC);
> if (!range) {
> err = -ENOMEM;
> goto end_register;
> --
> 1.9.1
>
>
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