platform/chrome: chromeos_laptop: Use kmemdup_array

Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Yu Jiaoliang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Tzung-Bi Shih <[email protected]>

diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index a2cdbfbaeae6b0ba7d2961308a0e3f76fd3a58d4..3ab668764383f57d12941930ca7107bd065bd4f6 100644 (file)
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -749,10 +749,9 @@ chromeos_laptop_prepare_i2c_peripherals(struct chromeos_laptop *cros_laptop,
        if (!src->num_i2c_peripherals)
                return 0;
 
-       i2c_peripherals = kmemdup(src->i2c_peripherals,
-                                             src->num_i2c_peripherals *
-                                         sizeof(*src->i2c_peripherals),
-                                         GFP_KERNEL);
+       i2c_peripherals = kmemdup_array(src->i2c_peripherals,
+                                       src->num_i2c_peripherals,
+                                       sizeof(*i2c_peripherals), GFP_KERNEL);
        if (!i2c_peripherals)
                return -ENOMEM;