diff options
| -rw-r--r-- | sys/dev/adb/adb_mouse.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/adb/adb_mouse.c b/sys/dev/adb/adb_mouse.c index 8b9c7d1..b290d5e 100644 --- a/sys/dev/adb/adb_mouse.c +++ b/sys/dev/adb/adb_mouse.c @@ -382,6 +382,7 @@ ams_read(struct cdev *dev, struct uio *uio, int flag) struct adb_mouse_softc *sc; size_t len; int8_t outpacket[8]; + int error; sc = CDEV_GET_SOFTC(dev); if (sc == NULL) @@ -403,7 +404,11 @@ ams_read(struct cdev *dev, struct uio *uio, int flag) /* Otherwise, block on new data */ - cv_wait(&sc->sc_cv,&sc->sc_mtx); + error = cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); + if (error) { + mtx_unlock(&sc->sc_mtx); + return (error); + } } sc->packet[0] = 1 << 7; |
