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authorRobert Morris <[email protected]>2022-09-09 09:17:37 -0400
committerRobert Morris <[email protected]>2022-09-09 09:17:37 -0400
commit463ae0abc3225d6e6de4a5a1ad57e64ab76b2b6f (patch)
treec5b10e5928166b5aa994c30c6d4111b10edf1d2d
parentf5b93ef12f7159f74f80f94729ee4faabe42c360 (diff)
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handle negative arguments to sleep() a little better
-rw-r--r--kernel/sysproc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sysproc.c b/kernel/sysproc.c
index 1de184e..3b4d5bd 100644
--- a/kernel/sysproc.c
+++ b/kernel/sysproc.c
@@ -55,6 +55,8 @@ sys_sleep(void)
uint ticks0;
argint(0, &n);
+ if(n < 0)
+ n = 0;
acquire(&tickslock);
ticks0 = ticks;
while(ticks - ticks0 < n){