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Make sure we actually have a dev before dereferencing in case someone

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botches and sends us a NULL pointer.  The other code in this file seems
to expect it to be able to handle it behaving this way.
This commit is contained in:
Alfred Perlstein 2003-03-13 06:29:44 +00:00
parent de950c003c
commit 569d3c4bf0
1 changed files with 1 additions and 1 deletions
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2
sys/kern/subr_bus.c
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@ -1154,7 +1154,7 @@ device_get_devclass(device_t dev)
const char *
device_get_name(device_t dev)
{
if (dev->devclass)
if (dev != NULL && dev->devclass)
return (devclass_get_name(dev->devclass));
return (NULL);
}