ASoC: codecs: wcd938x: fix missing clsh ctrl error handling

Allocation of the clash control structure may fail so add the missing
error handling to avoid dereferencing an error pointer.

Fixes: 8d78602aa87a ("ASoC: codecs: wcd938x: add basic driver")
Cc: stable@vger.kernel.org	# 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-4-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index 3a33607..a8aed48 100644 (file)
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -3106,6 +3106,10 @@ static int wcd938x_soc_codec_probe(struct snd_soc_component *component)
                                                 WCD938X_ID_MASK);
 
        wcd938x->clsh_info = wcd_clsh_ctrl_alloc(component, WCD938X);
+       if (IS_ERR(wcd938x->clsh_info)) {
+               pm_runtime_put(dev);
+               return PTR_ERR(wcd938x->clsh_info);
+       }
 
        wcd938x_io_init(wcd938x);
        /* Set all interrupts as edge triggered */