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Commit 512f2bba authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: wm_adsp: Move temporary control name to the stack 



Now we only allocate 44 bytes for the control name keep it on the stack
to avoid a lot of pointless memory allocation.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0f4e918c

sound/soc/codecs/wm_adsp.c

+6 −17
Original line number Diff line number Diff line
@@ -785,14 +785,10 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, 
{

	struct wm_coeff_ctl *ctl;

	struct wmfw_ctl_work *ctl_work;

	char *name;

	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];

	char *region_name;

	int ret;



	name = kmalloc(SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);

	if (!name)

		return -ENOMEM;



	switch (alg_region->type) {

	case WMFW_ADSP1_PM:

		region_name = "PM";
@@ -810,8 +806,7 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, 
		region_name = "ZM";

		break;

	default:

		ret = -EINVAL;

		goto err_name;

		return -EINVAL;

	}



	snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
@@ -822,15 +817,13 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, 
		if (!strcmp(ctl->name, name)) {

			if (!ctl->enabled)

				ctl->enabled = 1;

			goto found;

			return 0;

		}

	}



	ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);

	if (!ctl) {

		ret = -ENOMEM;

		goto err_name;

	}

	if (!ctl)

		return -ENOMEM;

	ctl->alg_region = *alg_region;

	ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);

	if (!ctl->name) {
@@ -866,9 +859,6 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, 
	INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);

	schedule_work(&ctl_work->work);



found:

	kfree(name);



	return 0;



err_ctl_cache:
@@ -877,8 +867,7 @@ static int wm_adsp_create_control(struct wm_adsp *dsp, 
	kfree(ctl->name);

err_ctl:

	kfree(ctl);

err_name:

	kfree(name);



	return ret;

}