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

From: Emil Velikov emil.velikov@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@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)