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Update exit.c #1203

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Update exit.c #1203

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9 changes: 9 additions & 0 deletions kernel/exit.c
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Original file line number Diff line number Diff line change
@@ -1741,6 +1741,15 @@ int kernel_waitid_prepare(struct wait_opts *wo, int which, pid_t upid,

pid = find_get_pid(upid);
break;
case P_SID:
type = PIDTYPE_SID;
if (upid < 0)
return -EINVAL;

if (upid)
pid = find_get_pid(upid);
else
pid = get_task_pid(current, PIDTYPE_SID);
case P_PGID:
type = PIDTYPE_PGID;
if (upid < 0)