RE: [PATCH 2/2] pci-hyperv: Fix an atomic bug

[Long Li]

> -----Original Message-----
> From: devel [mailto:driverdev-devel-bounces@xxxxxxxxxxxxxxxxxxxxxx] On
> Behalf Of kys@xxxxxxxxxxxxxxxxxxxxxx
> Sent: Friday, March 24, 2017 11:07 AM
> To: helgaas@xxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx;
> apw@xxxxxxxxxxxxx; vkuznets@xxxxxxxxxx; jasowang@xxxxxxxxxx;
> leann.ogasawara@xxxxxxxxxxxxx; marcelo.cerri@xxxxxxxxxxxxx; Stephen
> Hemminger <sthemmin@xxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Subject: [PATCH 2/2] pci-hyperv: Fix an atomic bug
> 
> From: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> 
> The memory allocation here needs to be non-blocking.
> Fix the issue.
> 
> Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>

Reviewed-by: Long Li <longli@xxxxxxxxxxxxx>

> ---
>  drivers/pci/host/pci-hyperv.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
> index 32a16fb..85088a1 100644
> --- a/drivers/pci/host/pci-hyperv.c
> +++ b/drivers/pci/host/pci-hyperv.c
> @@ -877,7 +877,7 @@ static void hv_compose_msi_msg(struct irq_data
> *data, struct msi_msg *msg)
>                 hv_int_desc_free(hpdev, int_desc);
>         }
> 
> -       int_desc = kzalloc(sizeof(*int_desc), GFP_KERNEL);
> +       int_desc = kzalloc(sizeof(*int_desc), GFP_ATOMIC);
>         if (!int_desc)
>                 goto drop_reference;
> 
> --
> 1.7.1
> 
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