[NET]: Fix gen_estimator timer removal race As noticed by Jarek Poplawski , the timer removal in gen_kill_estimator races with the timer function rearming the timer. Check whether the timer list is empty before rearming the timer in the timer function to fix this. Signed-off-by: Patrick McHardy --- commit 369edff5c22c6838cb632c24a1971f1ce6823991 tree b0f47f8469ed9fc47e8fc6b597b204aac816133a parent ba609a9d97ba231c3d94443c50579ceb5fc33867 author Patrick McHardy Wed, 04 Jul 2007 17:45:26 +0200 committer Patrick McHardy Wed, 04 Jul 2007 17:45:26 +0200 net/core/gen_estimator.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 17daf4c..cc84d8d 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -128,7 +128,8 @@ static void est_timer(unsigned long arg) spin_unlock(e->stats_lock); } - mod_timer(&elist[idx].timer, jiffies + ((HZ<