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correct error paths; still need to verify that the "didn't give us back..."

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case is correct.
This commit is contained in:
christos 2014-10-03 20:56:24 +00:00
parent 194a5fe433
commit 58f906ec2f
1 changed files with 5 additions and 4 deletions
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9
sys/arch/xen/xen/privcmd.c
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@ -1,4 +1,4 @@
/* $NetBSD: privcmd.c,v 1.47 2014/09/21 16:56:44 christos Exp $ */
/* $NetBSD: privcmd.c,v 1.48 2014/10/03 20:56:24 christos Exp $ */
/*-
* Copyright (c) 2004 Christian Limpach.
@ -27,7 +27,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: privcmd.c,v 1.47 2014/09/21 16:56:44 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: privcmd.c,v 1.48 2014/10/03 20:56:24 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -576,12 +576,13 @@ privcmd_map_obj(struct vm_map *map, vaddr_t start, paddr_t *maddr,
if (error) {
if (obj)
obj->uobj.pgops->pgo_detach(&obj->uobj);
kmem_free(maddr, sizeof(paddr_t) * npages);
kmem_free(obj, sizeof(*obj));
return error;
}
if (newstart != start) {
printf("uvm_map didn't give us back our vm space\n");
uvm_unmap1(map, newstart, newstart + size, 0);
if (obj)
obj->uobj.pgops->pgo_detach(&obj->uobj);
return EINVAL;
}
return 0;