diff options
Diffstat (limited to 'kernel/vm.c')
| -rw-r--r-- | kernel/vm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/vm.c b/kernel/vm.c index 92a5ff7..2f3789f 100644 --- a/kernel/vm.c +++ b/kernel/vm.c @@ -195,13 +195,14 @@ uvmunmap(pagetable_t pagetable, uint64 va, uint64 npages, int do_free) } // create an empty user page table. +// returns 0 if out of memory. pagetable_t uvmcreate() { pagetable_t pagetable; pagetable = (pagetable_t) kalloc(); if(pagetable == 0) - panic("uvmcreate: out of memory"); + return 0; memset(pagetable, 0, PGSIZE); return pagetable; } |