From: Maciej Sosnowski <maciej.sosnowski@intel.com>
Date: Wed, 23 May 2012 15:27:07 +0000 (+0200)
Subject: dca: check against empty dca_domains list before unregister provider
X-Git-Tag: v3.2.40~146
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=10928eb067be9d946771fe1adcb22bbaad43830c;p=pandora-kernel.git

dca: check against empty dca_domains list before unregister provider

commit c419fcfd071cf34ba00f9f65282583772d2655e7 upstream.

When providers get blocked unregister_dca_providers() is called ending up
with dca_providers and dca_domain lists emptied. Dca should be prevented from
trying to unregister any provider if dca_domain list is found empty.

Reported-by: Jiang Liu <jiang.liu@huawei.com>
Tested-by: Gaohuai Han <hangaohuai@huawei.com>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <djbw@fb.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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