ALSA: control - Fixe a trailing white space error

Fixed a trailing white space error detected
in sound/core/control.c by checkpatch.pl script.

Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/control.c

diff --git a/sound/core/control.c b/sound/core/control.c
index 819a5c5..2487a6b 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1313,7 +1313,7 @@
 			err = -EPERM;
 			goto __kctl_end;
 		}
-		err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv); 
+		err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv);
 		if (err > 0) {
 			up_read(&card->controls_rwsem);
 			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id);