Allocate the memory with scoped/cleanup.h to reduce error handling (less error paths) and make the code a bit simpler.
Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org --- sound/soc/codecs/wcd934x.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c index 6c65b46e2dc9..291d0c80a6fc 100644 --- a/sound/soc/codecs/wcd934x.c +++ b/sound/soc/codecs/wcd934x.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019, Linaro Limited
+#include <linux/cleanup.h> #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/interrupt.h> @@ -4973,25 +4974,23 @@ static int wcd934x_codec_enable_dec(struct snd_soc_dapm_widget *w, struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm); unsigned int decimator; char *dec_adc_mux_name = NULL; - char *widget_name = NULL; - char *wname; + char *widget_name; int ret = 0, amic_n; u16 tx_vol_ctl_reg, pwr_level_reg = 0, dec_cfg_reg, hpf_gate_reg; u16 tx_gain_ctl_reg; char *dec; u8 hpf_coff_freq;
- widget_name = kstrndup(w->name, 15, GFP_KERNEL); - if (!widget_name) + char *wname __free(kfree) = kstrndup(w->name, 15, GFP_KERNEL); + if (!wname) return -ENOMEM;
- wname = widget_name; + widget_name = wname; dec_adc_mux_name = strsep(&widget_name, " "); if (!dec_adc_mux_name) { dev_err(comp->dev, "%s: Invalid decimator = %s\n", __func__, w->name); - ret = -EINVAL; - goto out; + return -EINVAL; } dec_adc_mux_name = widget_name;
@@ -4999,16 +4998,14 @@ static int wcd934x_codec_enable_dec(struct snd_soc_dapm_widget *w, if (!dec) { dev_err(comp->dev, "%s: decimator index not found\n", __func__); - ret = -EINVAL; - goto out; + return -EINVAL; }
ret = kstrtouint(dec, 10, &decimator); if (ret < 0) { dev_err(comp->dev, "%s: Invalid decimator = %s\n", __func__, wname); - ret = -EINVAL; - goto out; + return -EINVAL; }
tx_vol_ctl_reg = WCD934X_CDC_TX0_TX_PATH_CTL + 16 * decimator; @@ -5101,8 +5098,7 @@ static int wcd934x_codec_enable_dec(struct snd_soc_dapm_widget *w, WCD934X_DEC_PWR_LVL_DF); break; } -out: - kfree(wname); + return ret; }