[dpdk-dev] [PATCH 2/6] eal: Close file descriptor of uio configuration

[David Marchand]

On Tue, Mar 17, 2015 at 10:30 AM, Tetsuya Mukawa <mukawa at igel.co.jp> wrote:

> When pci_uio_unmap_resource() is called, a file descriptor that is used
> for uio configuration should be closed.
>
> Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
> ---
>  lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
> b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
> index 9cdf24f..b971ec9 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
> @@ -459,8 +459,14 @@ pci_uio_unmap_resource(struct rte_pci_device *dev)
>
>         /* close fd if in primary process */
>         close(dev->intr_handle.fd);
> -
>         dev->intr_handle.fd = -1;
> +
> +       /* close cfg_fd if in primary process */

+       if (dev->intr_handle.uio_cfg_fd >= 0) {
> +               close(dev->intr_handle.uio_cfg_fd);
> +               dev->intr_handle.uio_cfg_fd = -1;
> +       }
> +
>         dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
>  }
>  #endif /* RTE_LIBRTE_EAL_HOTPLUG */
>

Hum, why check for < 0 value ?
There is no such check for intr_handle.fd and I can see no reason why we
should behave differently.


-- 
David Marchand