diff options
| -rw-r--r-- | sys/kern/subr_bus.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index 3f451d38b235..138b22077d12 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -407,7 +407,9 @@ devclass_add_device(devclass_t dc, device_t dev) PDEBUG(("%s in devclass %s", DEVICENAME(dev), DEVCLANAME(dc))); - buflen = strlen(dc->name) + 5; + buflen = snprintf(NULL, 0, "%s%d$", dc->name, dev->unit); + if (buflen < 0) + return (ENOMEM); dev->nameunit = malloc(buflen, M_BUS, M_NOWAIT|M_ZERO); if (!dev->nameunit) return (ENOMEM); |