iio: pressure: bmp280: Fix uninitialized variable

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 Lin (Leo) <0xff07@gmail.com>
Link: https://patch.msgid.link/20241011115334.367736-1-0xff07@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index f4df222ed0c3c7166c4dbaf73706faf55ca83b51..682329f81886a183402b26e8d170808cfebd3abd 100644 (file)
--- 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);