From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 14 Mar 2014 05:46:09 +0000 (+0800)
Subject: libata: acpi: avoid passing NULL to ACPI evaluation method
X-Git-Tag: v3.15-rc1~161^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c75da205e02dda3b79ca057e558f97f3d61c855d;p=pandora-kernel.git

libata: acpi: avoid passing NULL to ACPI evaluation method

If ACPI handle for an ATA device is NULL, we shouldn't call
ata_dev_get_GTF as that function will use handle to do some ACPI
evaluation.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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