ARM: omap2: Switch to use kmemdup_array()

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Link: https://lore.kernel.org/r/20240606165104.3031737-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

Author: andy-shev

arch/arm/mach-omap2/omap_device.c

@@ -315,7 +315,7 @@ static struct omap_device *omap_device_alloc(struct platform_device *pdev,
 
 	od->hwmods_cnt = oh_cnt;
 
-	hwmods = kmemdup(ohs, sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL);
+	hwmods = kmemdup_array(ohs, oh_cnt, sizeof(*hwmods), GFP_KERNEL);
 	if (!hwmods)
 		goto oda_exit2;