ASoC: codecs: wcd937x: fix a potential memory leak in wcd937x_soc_codec_probe()

commit 3e330ac upstream.

When snd_soc_dapm_new_controls() or snd_soc_dapm_add_routes() fails,
wcd937x_soc_codec_probe() returns without releasing 'wcd937x->clsh_info',
which is allocated by wcd_clsh_ctrl_alloc. Add wcd_clsh_ctrl_free()
to prevent potential memory leak.

Fixes: 313e978 ("ASoC: codecs: wcd937x: add audio routing and Kconfig")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Link: https://patch.msgid.link/20250226085050.3584898-1-haoxiang_li2024@163.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Haoxiang Li

sound/soc/codecs/wcd937x.c

@@ -2564,13 +2564,15 @@ static int wcd937x_soc_codec_probe(struct snd_soc_component *component)
 						ARRAY_SIZE(wcd9375_dapm_widgets));
 		if (ret < 0) {
 			dev_err(component->dev, "Failed to add snd_ctls\n");
+			wcd_clsh_ctrl_free(wcd937x->clsh_info);
 			return ret;
 		}
 
 		ret = snd_soc_dapm_add_routes(dapm, wcd9375_audio_map,
 					      ARRAY_SIZE(wcd9375_audio_map));
 		if (ret < 0) {
 			dev_err(component->dev, "Failed to add routes\n");
+			wcd_clsh_ctrl_free(wcd937x->clsh_info);
 			return ret;
 		}
 	}