diff --git a/drivers/media/i2c/ar0521.c b/drivers/media/i2c/ar0521.c
index 02856a733238..1ede57958410 100644
--- a/drivers/media/i2c/ar0521.c
+++ b/drivers/media/i2c/ar0521.c
@@ -223,10 +223,10 @@ static u32 calc_pll(struct ar0521_dev *sensor, int num, u32 freq, u16 *pre_ptr,
 			continue; /* Minimum value */
 		if (new_mult > 254)
 			break; /* Maximum, larger pre won't work either */
-		if (sensor->extclk_freq * (u64)new_mult < AR0521_PLL_MIN *
+		if (sensor->extclk_freq * (u64)new_mult < (u64)AR0521_PLL_MIN *
 		    new_pre)
 			continue;
-		if (sensor->extclk_freq * (u64)new_mult > AR0521_PLL_MAX *
+		if (sensor->extclk_freq * (u64)new_mult > (u64)AR0521_PLL_MAX *
 		    new_pre)
 			break; /* Larger pre won't work either */
 		new_pll = div64_round_up(sensor->extclk_freq * (u64)new_mult,