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superio: do not crash if failed to create the character device

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MFC after:	1 week
This commit is contained in:
Andriy Gapon 2019-10-25 16:30:24 +00:00
parent 702828f643
commit 174bd5b040
1 changed files with 2 additions and 1 deletions
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3
sys/dev/superio/superio.c
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@ -636,7 +636,8 @@ superio_attach(device_t dev)
UID_ROOT, GID_WHEEL, 0600, "superio%d", device_get_unit(dev));
if (sc->chardev == NULL)
device_printf(dev, "failed to create character device\n");
sc->chardev->si_drv1 = sc;
else
sc->chardev->si_drv1 = sc;
return (0);
}