[PATCH] iio: dac: mcp47feb02: Fix mutex used before initialization

[Felix Gu]

The mcp47feb02_parse_fw() function uses data->lock, but the mutex was
initialized after this function in probe path.

Fix this by moving devm_mutex_init() before mcp47feb02_parse_fw().

Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02")
Signed-off-by: Felix Gu <ustc.gu@xxxxxxxxx>
---
 drivers/iio/dac/mcp47feb02.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/dac/mcp47feb02.c b/drivers/iio/dac/mcp47feb02.c
index b218f0c3a0bd..4ff5abcfecea 100644
--- a/drivers/iio/dac/mcp47feb02.c
+++ b/drivers/iio/dac/mcp47feb02.c
@@ -1131,14 +1131,14 @@ static int mcp47feb02_probe(struct i2c_client *client)
 
 	indio_dev->name = chip_features->name;
 
-	ret = mcp47feb02_parse_fw(indio_dev, chip_features);
-	if (ret)
-		return dev_err_probe(dev, ret, "Error parsing firmware data\n");
-
 	ret = devm_mutex_init(dev, &data->lock);
 	if (ret)
 		return ret;
 
+	ret = mcp47feb02_parse_fw(indio_dev, chip_features);
+	if (ret)
+		return dev_err_probe(dev, ret, "Error parsing firmware data\n");
+
 	ret = devm_regulator_get_enable_read_voltage(dev, "vdd");
 	if (ret < 0)
 		return ret;

---
base-commit: d4906ae14a5f136ceb671bb14cedbf13fa560da6
change-id: 20260223-mcp47feb02-e0bed17e198b

Best regards,
-- 
Felix Gu <ustc.gu@xxxxxxxxx>