[PATCH] vfree NULL check fixup for sb_card

There's no need to check the vfree() argument for NULL.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/oss/sb_card.c

diff --git a/sound/oss/sb_card.c b/sound/oss/sb_card.c
index d38e88a..4708cbd 100644
--- a/sound/oss/sb_card.c
+++ b/sound/oss/sb_card.c
@@ -348,10 +348,8 @@
 
 	sb_unregister_all();
 
-	if (smw_free) {
-		vfree(smw_free);
-		smw_free = NULL;
-	}
+	vfree(smw_free);
+	smw_free = NULL;
 }
 
 module_init(sb_init);