[ALSA] fix compilation warning in GCC

'snd_shutdown_f_ops' is not a pointer so its address will never be NULL.
GCC will complain because 'fops_get' will do an unnecessary check because
'&snd_shutdown_f_ops' is always true.
Signed-off-by: NMiguel Boton <mboton@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/core/init.c

@@ -339,8 +339,8 @@ int snd_card_disconnect(struct snd_card *card)
 		list_add(&mfile->shutdown_list, &shutdown_files);
 		spin_unlock(&shutdown_lock);
 
-		fops_get(&snd_shutdown_f_ops);
 		mfile->file->f_op = &snd_shutdown_f_ops;
+		fops_get(mfile->file->f_op);
 		
 		mfile = mfile->next;
 	}