From: Colin Ian King <colin.king@canonical.com>
Date: Mon, 25 Mar 2013 10:50:05 +0000 (+0000)
Subject: ACPI / fan: avoid null pointer deference error
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~92^2~6^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0c29583db51104a7bc223b1e9c88d818f24ba4d;p=pandora-kernel.git

ACPI / fan: avoid null pointer deference error

Fix a null pointer deference by acpi_driver_data() if device is
null.  We should only set cdev and check this is OK after we are
sure device is not null.

Smatch analysis:

drivers/acpi/fan.c:179 acpi_fan_remove() warn: variable dereferenced
  before check 'device' (see line 177)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

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