ASoC: imx-sgtl5000: Fix uninitialized pointer use in error path
This patch avoids to dereference the uninitialized data pointer if the
error path is entered before devm_kzalloc is called (or if the allocation
fails). It fixes the following warning:
sound/soc/fsl/imx-sgtl5000.c: In function 'imx_sgtl5000_probe':
sound/soc/fsl/imx-sgtl5000.c:175:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 52df7d5..ca1be1d 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -62,7 +62,7 @@
struct device_node *ssi_np, *codec_np;
struct platform_device *ssi_pdev;
struct i2c_client *codec_dev;
- struct imx_sgtl5000_data *data;
+ struct imx_sgtl5000_data *data = NULL;
int int_port, ext_port;
int ret;
@@ -172,7 +172,7 @@
return 0;
fail:
- if (!IS_ERR(data->codec_clk))
+ if (data && !IS_ERR(data->codec_clk))
clk_put(data->codec_clk);
if (ssi_np)
of_node_put(ssi_np);