From: "Paul E. McKenney" <[email protected]> Currently, all calls to torture_hrtimeout_ns() either provide a non-zero fuzzt_ns or a NULL trsp, either of which avoids taking the modulus of a zero-valued fuzzt_ns. But this code should do a better job of defending itself, so this commit explicitly checks fuzzt_ns and avoids the modulus when its value is zero.
Reviewed-by: Joel Fernandes <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> Signed-off-by: Joel Fernandes <[email protected]> --- kernel/torture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/torture.c b/kernel/torture.c index ec3370986976..62c1ac777694 100644 --- a/kernel/torture.c +++ b/kernel/torture.c @@ -93,7 +93,7 @@ int torture_hrtimeout_ns(ktime_t baset_ns, u32 fuzzt_ns, const enum hrtimer_mode { ktime_t hto = baset_ns; - if (trsp) + if (trsp && fuzzt_ns) hto += torture_random(trsp) % fuzzt_ns; set_current_state(TASK_IDLE); return schedule_hrtimeout(&hto, mode); -- 2.34.1
