diff options
Diffstat (limited to 'kernel/proc.c')
| -rw-r--r-- | kernel/proc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/proc.c b/kernel/proc.c index 2811142..56314e5 100644 --- a/kernel/proc.c +++ b/kernel/proc.c @@ -161,6 +161,8 @@ proc_pagetable(struct proc *p) // An empty page table. pagetable = uvmcreate(); + if(pagetable == 0) + return 0; // map the trampoline code (for system call return) // at the highest user virtual address. |