From mboxrd@z Thu Jan  1 00:00:00 1970
From: Delio Brignoli <dbrignoli@audioscience.com>
Subject: Make snd_card_free() a no-op again for NULL ptr
	argument
Date: Thu, 29 Jun 2017 12:46:33 +0200
Message-ID: <4ED8A548-C7E7-42A8-B3C7-0D32BFC49367@audioscience.com>
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