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Don't panic if a resource is allocated twice. Instead, print a warning and

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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
This commit is contained in:
John Baldwin 2014-09-26 18:37:49 +00:00
parent d7771b5006
commit c1d67516d9
1 changed files with 4 additions and 1 deletions
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5
sys/kern/subr_bus.c
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@ -3302,7 +3302,10 @@ resource_list_alloc(struct resource_list *rl, device_t bus, device_t child,
rle->flags |= RLE_ALLOCATED; rle->flags |= RLE_ALLOCATED;
return (rle->res); 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) { if (isdefault) {