Cast (long)jiffies and (long)state->last_time beacause they tends to unsigned long. may cause a problem specially when comparison happens (< 0).
Signed-off-by: Karim Eshapa <[email protected]> --- drivers/char/random.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/char/random.c b/drivers/char/random.c index 0ab0249..f685e78 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1012,7 +1012,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) preempt_disable(); - sample.jiffies = jiffies; + sample.jiffies = (long)jiffies; sample.cycles = random_get_entropy(); sample.num = num; r = &input_pool; @@ -1025,7 +1025,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) */ if (!state->dont_count_entropy) { - delta = sample.jiffies - state->last_time; + delta = sample.jiffies - (long)state->last_time; state->last_time = sample.jiffies; delta2 = delta - state->last_delta; -- 2.7.4
