i broke sbrk, fix it

1 files changed, 3 insertions, 3 deletions

diff --git a/proc.c b/proc.c
index 81149d7..1d0917f 100644
--- a/proc.c
+++ b/proc.c
@@ -138,7 +138,7 @@ copyproc(struct proc* p)
   return np;
 }
 
-int
+uint
 growproc(int n)
 {
   struct proc *cp = curproc[cpu()];
@@ -146,14 +146,14 @@ growproc(int n)
 
   newmem = kalloc(cp->sz + n);
   if(newmem == 0)
-    return -1;
+    return 0xffffffff;
   memmove(newmem, cp->mem, cp->sz);
   memset(newmem + cp->sz, 0, n);
   oldmem = cp->mem;
   cp->mem = newmem;
   kfree(oldmem, cp->sz);
   cp->sz += n;
-  return 0;
+  return cp->sz - n;
 }
 
 // Per-CPU process scheduler.