ASoC: test-component: Use kcalloc() instead of kzalloc()

Use devm_kcalloc() in test_driver_probe() to gain built-in overflow
protection, making memory allocation safer when calculating allocation
size compared to explicit multiplication.

Signed-off-by: Qianfeng Rong <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/generic/test-component.c

···
 
 	priv	= devm_kzalloc(dev, sizeof(*priv),		GFP_KERNEL);
 	cdriv	= devm_kzalloc(dev, sizeof(*cdriv),		GFP_KERNEL);
-	ddriv	= devm_kzalloc(dev, sizeof(*ddriv) * num,	GFP_KERNEL);
-	dname	= devm_kzalloc(dev, sizeof(*dname) * num,	GFP_KERNEL);
+	ddriv	= devm_kcalloc(dev, num, sizeof(*ddriv), 	GFP_KERNEL);
+	dname	= devm_kcalloc(dev, num, sizeof(*dname), 	GFP_KERNEL);
 	if (!priv || !cdriv || !ddriv || !dname || !adata)
 		return -EINVAL;