From 8500d791c458ccbbb3e2d3fa9a0320ffd5729069 Mon Sep 17 00:00:00 2001
From: Anatol Pomozov <anatol.pomozov@gmail.com>
Date: Wed, 30 Jul 2014 15:57:03 -0700
Subject: [PATCH] Bluetooth: Fix crash in the Marvell driver initialization
 codepath

btmrvl_add_card() function calls kthread_run that might return error
(e.g. if current thread is killed). If one tries to use the error
value as a pointer then invalid memory access oops happens.

Check kthread_run() return value, if it is an error then release resources
correctly.

TEST=boot computer with BT modules enabled. I see the error message that
BT device initialization failed. Now kernel does not crash. Hint: to enable
BT run 'rmmod btmrvl_sdio; modprobe btmrvl_sdio'

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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