ALSA: control: Use struct_size() (65be9580) · Commits · 戴 / test

sound/core/control.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -211,16 +211,12 @@ EXPORT_SYMBOL(snd_ctl_notify);
		static int snd_ctl_new(struct snd_kcontrol **kctl, unsigned int count,
		unsigned int access, struct snd_ctl_file *file)
		{
		unsigned int size;
		unsigned int idx;

		if (count == 0 \|\| count > MAX_CONTROL_COUNT)
		return -EINVAL;

		size = sizeof(struct snd_kcontrol);
		size += sizeof(struct snd_kcontrol_volatile) * count;

		*kctl = kzalloc(size, GFP_KERNEL);
		kctl = kzalloc(struct_size(kctl, vd, count), GFP_KERNEL);
		if (!*kctl)
		return -ENOMEM;