From b403981da8a26f57f07859a9704392b1183e2a6e Mon Sep 17 00:00:00 2001 From: Felix Gu Date: Wed, 25 Feb 2026 22:48:57 +0800 Subject: [PATCH] iio: dac: mcp47feb02: Fix mutex used before initialization 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 Signed-off-by: Jonathan Cameron --- 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");