From: Julia Lawall <Julia.Lawall@xxxxxxx> PTR_ERR should be called before its argument is cleared. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1; constant c; @@ *e = c ... when != e = e1 when != &e when != true IS_ERR(e) *PTR_ERR(e) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> Reported-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> --- v2: correct commit message. kernel/rcutorture.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index a58ac28..4b3cd87 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -1450,12 +1450,15 @@ rcu_torture_onoff(void *arg) static int __cpuinit rcu_torture_onoff_init(void) { + int ret; + if (onoff_interval <= 0) return 0; onoff_task = kthread_run(rcu_torture_onoff, NULL, "rcu_torture_onoff"); if (IS_ERR(onoff_task)) { + ret = PTR_ERR(onoff_task); onoff_task = NULL; - return PTR_ERR(onoff_task); + return ret; } return 0; } -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
