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Remove the panic when trying to register a sysctl with an oid too high.

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This stops panics on unloading modules which define their own sysctl sets.

However, this also removes the protection against somebody actually
defining a static sysctl with an oid in the range of the dynamic ones,
which would break badly if there is already a dynamic sysctl with
the requested oid.

Apparently, the algorithm for removing sysctl sets needs a bit more work.
For the present, the panic I introduced only leads to Bad Things (tm).

Submitted by:	many users of -current :(
Pointy hat to:	roam (myself) for not testing rev. 1.112 enough.
This commit is contained in:
Peter Pentchev 2001-10-12 09:16:36 +00:00
parent 27a550e5ed
commit 88fbb423d4
1 changed files with 6 additions and 2 deletions
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8
sys/kern/kern_sysctl.c
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@ -123,9 +123,13 @@ sysctl_register_oid(struct sysctl_oid *oidp)
oidp->oid_number = newoid++;
if (newoid == 0x7fffffff)
panic("out of oids");
} else if (oidp->oid_number >= CTL_AUTO_START) {
panic("static sysctl oid too high: %d", oidp->oid_number);
}
#if 0
else if (oidp->oid_number >= CTL_AUTO_START) {
/* do not panic; this happens when unregistering sysctl sets */
printf("static sysctl oid too high: %d", oidp->oid_number);
}
#endif
/*
* Insert the oid into the parent's list in order.