[ALSA] Remove vmalloc wrapper, kfree_nocheck()

- Remove vmalloc wrapper
- Add release_and_free_resource() to remove kfree_nocheck() from each driver
  and simplify the code

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
index 380c2c7..4ae5dd8 100644
--- a/sound/drivers/opl4/opl4_lib.c
+++ b/sound/drivers/opl4/opl4_lib.c
@@ -169,14 +169,8 @@
 #ifdef CONFIG_PROC_FS
 	snd_opl4_free_proc(opl4);
 #endif
-	if (opl4->res_fm_port) {
-		release_resource(opl4->res_fm_port);
-		kfree_nocheck(opl4->res_fm_port);
-	}
-	if (opl4->res_pcm_port) {
-		release_resource(opl4->res_pcm_port);
-		kfree_nocheck(opl4->res_pcm_port);
-	}
+	release_and_free_resource(opl4->res_fm_port);
+	release_and_free_resource(opl4->res_pcm_port);
 	kfree(opl4);
 }