[PATCH 12/78] ASoC: codecs: cs-amp-lib: Use guard() for mutex locks

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

Clean up the code using guard() for mutex locks.
Merely code refactoring, and no behavior change.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/codecs/cs-amp-lib.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/cs-amp-lib.c b/sound/soc/codecs/cs-amp-lib.c
index 371e99205b58..36da474f4370 100644
--- a/sound/soc/codecs/cs-amp-lib.c
+++ b/sound/soc/codecs/cs-amp-lib.c
@@ -83,10 +83,12 @@ static int cs_amp_write_cal_coeff(struct cs_dsp *dsp,
 	KUNIT_STATIC_STUB_REDIRECT(cs_amp_write_cal_coeff, dsp, controls, ctl_name, val);
 
 	if (IS_REACHABLE(CONFIG_FW_CS_DSP)) {
-		mutex_lock(&dsp->pwr_lock);
-		cs_ctl = cs_dsp_get_ctl(dsp, ctl_name, controls->mem_region, controls->alg_id);
-		ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, &beval, sizeof(beval));
-		mutex_unlock(&dsp->pwr_lock);
+		scoped_guard(mutex, &dsp->pwr_lock) {
+			cs_ctl = cs_dsp_get_ctl(dsp, ctl_name,
+						controls->mem_region,
+						controls->alg_id);
+			ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, &beval, sizeof(beval));
+		}
 
 		if (ret < 0) {
 			dev_err(dsp->dev, "Failed to write to '%s': %d\n", ctl_name, ret);
-- 
2.43.0