[PATCH v2] iio: dac: mcp47feb02: Fix mutex used before initialization

[Felix Gu <ustc.gu@gmail.com>]

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

Since mcp47feb02_parse_fw() is only called from probe(), remove the lock.

Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
---
Changes in v2:
- Remove the lock in mcp47feb02_parse_fw() suggested by Nuno Sá.
- Link to v1: https://lore.kernel.org/r/20260223-mcp47feb02-v1-1-41f80bdbbb45@gmail.com
---
 drivers/iio/dac/mcp47feb02.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iio/dac/mcp47feb02.c b/drivers/iio/dac/mcp47feb02.c
index b218f0c3a0bd..08fb85359697 100644
--- a/drivers/iio/dac/mcp47feb02.c
+++ b/drivers/iio/dac/mcp47feb02.c
@@ -955,8 +955,6 @@ static int mcp47feb02_parse_fw(struct iio_dev *indio_dev,
 	u32 num_channels;
 	u8 chan_idx = 0;
 
-	guard(mutex)(&data->lock);
-
 	num_channels = device_get_child_node_count(dev);
 	if (num_channels > chip_features->phys_channels)
 		return dev_err_probe(dev, -EINVAL, "More channels than the chip supports\n");

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

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