[dpdk-dev] [PATCH 1/2] vfio: fix check for vfio_group_fd

[Burakov, Anatoly]

On 19-May-20 4:42 AM, wangyunjian wrote:
> From: Yunjian Wang <wangyunjian at huawei.com>
> 
> The issue is that a file descriptor at 0 is a valid one. Currently
> the file not found, the return value will be set to 0. As a result,
> it is impossible to distinguish between a correct descriptor and a
> failed return value. Fix it to return -ENOENT instead of 0.
> 
> Fixes: b758423bc4fe ("vfio: fix race condition with sysfs")
> Fixes: ff0b67d1c868 ("vfio: DMA mappinge")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
> ---

Reviewed-by: Anatoly Burakov <anatoly.burakov at intel.com>

-- 
Thanks,
Anatoly