staging: line6: Fix coding style problem

Fix style issue for eudyptula challenge

Signed-off-by: Mikhail Boiko <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/line6/capture.c

···
 		   copy two separate chunks.
 		 */
 		int len;
+
 		len = runtime->buffer_size - line6pcm->pos_in_done;
 
 		if (len > 0) {