kernel/bus: Avoid panic on NULL passed to kfree().
authorzrj <rimvydas.jasinskas@gmail.com>
Sun, 21 Jan 2018 15:56:58 +0000 (17:56 +0200)
committerzrj <zrj@dragonflybsd.org>
Sun, 21 Jan 2018 19:09:58 +0000 (21:09 +0200)
commitc669d212c00adac759a0b97aa633f792e3daf20b
tree269fb1512efbef6ceddd5e4a582434b30b92659b
parentc48822fbdbb5d2a7c9af1faf78408241d367c75a
kernel/bus: Avoid panic on NULL passed to kfree().

Our kfree() will issue panic() on NULL pointer.

Caught-by: gcc80 -Wnonnull
sys/kern/subr_bus.c