iio: pressure: bmp280: use = { } instead of memset()

Use { } instead of memset() to zero-initialize stack memory to simplify
the code.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-23-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/pressure/bmp280-core.c

@@ -1234,12 +1234,9 @@ static irqreturn_t bme280_trigger_handler(int irq, void *p)
 		s32 comp_temp;
 		u32 comp_humidity;
 		aligned_s64 timestamp;
-	} buffer;
+	} buffer = { }; /* Don't leak uninitialized stack to userspace. */
 	int ret;
 
-	/* Don't leak uninitialized stack to userspace. */
-	memset(&buffer, 0, sizeof(buffer));
-
 	guard(mutex)(&data->lock);
 
 	/* Burst read data registers */