[PATCH v2] iio: Fix uninitialized variable

["Yo-Jung (Leo) Lin" <0xff07@gmail.com>]

clang found that the "offset" in bmp580_trigger_handler doesn't get
initialized before access. Add proper initialization to this variable.

Signed-off-by: Yo-Jung (Leo) Lin <0xff07@gmail.com>
---
Change in v2:
- Make value initialization immediate before its first use.
- Link to v1: https://lore.kernel.org/all/20241011093752.30685-1-0xff07@gmail.com/

---
 drivers/iio/pressure/bmp280-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index f4df222ed0c3..682329f81886 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -2222,6 +2222,8 @@ static irqreturn_t bmp580_trigger_handler(int irq, void *p)
 		goto out;
 	}
 
+	offset = 0;
+
 	/* Pressure calculations */
 	memcpy(&data->sensor_data[offset], &data->buf[3], 3);
 
-- 
2.43.0