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-rw-r--r--vm.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/vm.c b/vm.c
index 9db8b67..39642f4 100644
--- a/vm.c
+++ b/vm.c
@@ -137,8 +137,10 @@ setupkvm(void)
panic("PHYSTOP too high");
for(k = kmap; k < &kmap[NELEM(kmap)]; k++)
if(mappages(pgdir, k->virt, k->phys_end - k->phys_start,
- (uint)k->phys_start, k->perm) < 0)
+ (uint)k->phys_start, k->perm) < 0) {
+ freevm(pgdir);
return 0;
+ }
return pgdir;
}