Author: jhb
Date: Fri Sep 26 18:37:49 2014
New Revision: 272182
URL: http://svnweb.freebsd.org/changeset/base/272182
Log:
Don't panic if a resource is allocated twice. Instead, print a warning and
fail the allocation request. Allocations of "reserved" resources such as
PCI BARs already fail the request instead of panic'ing in this case.
MFC after: 1 week
Modified:
head/sys/kern/subr_bus.c
Modified: head/sys/kern/subr_bus.c
==============================================================================
--- head/sys/kern/subr_bus.c Fri Sep 26 15:16:53 2014 (r272181)
+++ head/sys/kern/subr_bus.c Fri Sep 26 18:37:49 2014 (r272182)
@@ -3302,7 +3302,10 @@ resource_list_alloc(struct resource_list
rle->flags |= RLE_ALLOCATED;
return (rle->res);
}
- panic("resource_list_alloc: resource entry is busy");
+ device_printf(bus,
+ "resource entry %#x type %d for child %s is busy\n", *rid,
+ type, device_get_nameunit(child));
+ return (NULL);
}
if (isdefault) {
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