From 884f38590c3cc0b1a2c00904c1f1f6c791376308 Mon Sep 17 00:00:00 2001 From: Alexander Motin Date: Wed, 22 Sep 2021 08:42:36 -0400 Subject: Fix false device_set_unit() error. It should silently succeed if the current unit number is the same as requested, not fail immediately. MFC after: 1 week --- sys/kern/subr_bus.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index 1f580f455dc0..5e1b561155bb 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -3145,6 +3145,8 @@ device_set_unit(device_t dev, int unit) devclass_t dc; int err; + if (unit == dev->unit) + return (0); dc = device_get_devclass(dev); if (unit < dc->maxunit && dc->devices[unit]) return (EBUSY); -- cgit v1.2.3