@@ -180,7 +180,7 @@ static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
cx88_ir_handle_key(ir);
- missed = hrtimer_forward_now(&ir->timer, ir->polling * 1000000);
+ missed = hrtimer_forward_now(&ir->timer, ir->polling * 1000000LL);
if (missed > 1)
ir_dprintk("Missed ticks %ld\n", missed - 1);
@@ -200,7 +200,7 @@ static int __cx88_ir_start(void *priv)
if (ir->polling) {
hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
ir->timer.function = cx88_ir_work;
- hrtimer_start(&ir->timer, ir->polling * 1000000,
+ hrtimer_start(&ir->timer, ir->polling * 1000000LL,
HRTIMER_MODE_REL);
}
if (ir->sampling) {
Add suffix LL to constant 1000000 in order to give the compiler complete information about the proper arithmetic to use. Notice that this constant is used in a context that expects an expression of type ktime_t (64 bits, signed). The expression ir->polling * 1000000 is currently being evaluated using 32-bit arithmetic. Addresses-Coverity-ID: 1392628 ("Unintentional integer overflow") Addresses-Coverity-ID: 1392630 ("Unintentional integer overflow") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> --- Changes in v2: - Update subject and changelog to better reflect the proposed code changes. - Add suffix LL to constant instead of casting a variable. Changes in v3: - Mention the specific Coverity reports in the commit message. drivers/media/pci/cx88/cx88-input.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)