iio: core: fix a few code style issues

* Fix indent in else statement
* Remove unnecessary 'else' after 'break'
* Remove space in '* attr'
Signed-off-by: Alexander Vorwerk <alexander.vorwerk@stud.uni-goettingen.de>
Link: https://lore.kernel.org/r/20220312180343.8935-1-alexander.vorwerk@stud.uni-goettingen.deSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/industrialio-buffer.c

@@ -915,7 +915,7 @@ static int iio_verify_update(struct iio_dev *indio_dev,
 		if (scan_mask == NULL)
 			return -EINVAL;
 	} else {
-	    scan_mask = compound_mask;
+		scan_mask = compound_mask;
 	}
 
 	config->scan_bytes = iio_compute_scan_bytes(indio_dev,
@@ -1649,7 +1649,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
 	}
 
 	attrn = buffer_attrcount + scan_el_attrcount + ARRAY_SIZE(iio_buffer_attrs);
-	attr = kcalloc(attrn + 1, sizeof(* attr), GFP_KERNEL);
+	attr = kcalloc(attrn + 1, sizeof(*attr), GFP_KERNEL);
 	if (!attr) {
 		ret = -ENOMEM;
 		goto error_free_scan_mask;

drivers/iio/industrialio-core.c

@@ -892,8 +892,7 @@ static int __iio_str_to_fixpoint(const char *str, int fract_mult,
 		} else if (*str == '\n') {
 			if (*(str + 1) == '\0')
 				break;
-			else
-				return -EINVAL;
+			return -EINVAL;
 		} else if (!strncmp(str, " dB", sizeof(" dB") - 1) && scale_db) {
 			/* Ignore the dB suffix */
 			str += sizeof(" dB") - 1;