[PATCH libdrm 01/10] xf86drm: drmGetDevice2: error out if the fd has unknown subsys

[Robert Foss]

Feel free to add my r-b to this patch.

On 2018-06-25 19:36, Emil Velikov wrote:
> From: Emil Velikov <emil.velikov at collabora.com>
> 
> Currently one can open() any /dev node. If it's unknown
> drmParseSubsystemType() will return an error.
> 
> Track that and bail as needed.
> 
> Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
> ---
>   xf86drm.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/xf86drm.c b/xf86drm.c
> index 87c216cf..e1bbbe99 100644
> --- a/xf86drm.c
> +++ b/xf86drm.c
> @@ -3814,6 +3814,8 @@ int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device)
>           return -EINVAL;
>   
>       subsystem_type = drmParseSubsystemType(maj, min);
> +    if (subsystem_type < 0)
> +        return subsystem_type;
>   
>       local_devices = calloc(max_count, sizeof(drmDevicePtr));
>       if (local_devices == NULL)
>