ALSA: usb-audio: Use strim() instead of open code

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/card.c b/sound/usb/card.c
index fa6c097..69725d5 100644 (file)
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -321,16 +321,6 @@ static int snd_usb_audio_dev_free(struct snd_device *device)
        return snd_usb_audio_free(chip);
 }
 
-static void remove_trailing_spaces(char *str)
-{
-       char *p;
-
-       if (!*str)
-               return;
-       for (p = str + strlen(str) - 1; p >= str && isspace(*p); p--)
-               *p = 0;
-}
-
 /*
  * create a chip instance and set its names.
  */
@@ -414,7 +404,7 @@ static int snd_usb_audio_create(struct usb_interface *intf,
                                USB_ID_PRODUCT(chip->usb_id));
                }
        }
-       remove_trailing_spaces(card->shortname);
+       strim(card->shortname);
 
        /* retrieve the vendor and device strings as longname */
        if (quirk && quirk->vendor_name && *quirk->vendor_name) {
@@ -428,7 +418,7 @@ static int snd_usb_audio_create(struct usb_interface *intf,
                /* we don't really care if there isn't any vendor string */
        }
        if (len > 0) {
-               remove_trailing_spaces(card->longname);
+               strim(card->longname);
                if (*card->longname)
                        strlcat(card->longname, " ", sizeof(card->longname));
        }