diff options
| -rw-r--r-- | src/wcmValidateDevice.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/wcmValidateDevice.c b/src/wcmValidateDevice.c index 9c0294b..cc0b807 100644 --- a/src/wcmValidateDevice.c +++ b/src/wcmValidateDevice.c @@ -310,10 +310,11 @@ int wcmDeviceTypeKeys(InputInfoPtr pInfo) #ifdef INPUT_PROP_DIRECT { + int rc; unsigned long prop[NBITS(INPUT_PROP_MAX)] = {0}; - ioctl(pInfo->fd, EVIOCGPROP(sizeof(prop)), prop); - if (ISBITSET(prop, INPUT_PROP_DIRECT)) + rc = ioctl(pInfo->fd, EVIOCGPROP(sizeof(prop)), prop); + if (rc >= 0 && ISBITSET(prop, INPUT_PROP_DIRECT)) TabletSetFeature(priv->common, WCM_LCD); } #endif |