diff options
Diffstat (limited to 'xf86drm.c')
| -rw-r--r-- | xf86drm.c | 15 |
1 files changed, 12 insertions, 3 deletions
@@ -3005,10 +3005,20 @@ static int drmParseSubsystemType(int maj, int min) { #ifdef __linux__ char path[PATH_MAX + 1] = ""; + char real_path[PATH_MAX + 1] = ""; + int subsystem_type; - snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device", maj, min); + snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); + if (!realpath(path, real_path)) + return -errno; + snprintf(path, sizeof(path), "%s", real_path); - return get_subsystem_type(path); + subsystem_type = get_subsystem_type(path); + if (subsystem_type == DRM_BUS_VIRTIO) { + strncat(path, "/..", PATH_MAX); + subsystem_type = get_subsystem_type(path); + } + return subsystem_type; #elif defined(__OpenBSD__) || defined(__DragonFly__) return DRM_BUS_PCI; #else @@ -3710,7 +3720,6 @@ process_device(drmDevicePtr *device, const char *d_name, switch (subsystem_type) { case DRM_BUS_PCI: - case DRM_BUS_VIRTIO: return drmProcessPciDevice(device, node, node_type, maj, min, fetch_deviceinfo, flags); case DRM_BUS_USB: |