diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h
index 4dc961ced35e..3cf01a532b55 100644
--- a/drivers/staging/iio/Documentation/iio_utils.h
+++ b/drivers/staging/iio/Documentation/iio_utils.h
@@ -319,7 +319,6 @@ inline int build_channel_array(const char *device_dir,
 			}
 			fscanf(sysfsfp, "%u", &current->enabled);
 			fclose(sysfsfp);
-			free(filename);
 			current->scale = 1.0;
 			current->offset = 0;
 			current->name = strndup(ent->d_name,