iwlwifi: dvm: take mutex when sending SYNC BT config command
commit 82e5a649 upstream. There is a flow in which we send the host command in SYNC mode, but we don't take priv->mutex. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1046495Reviewed-by:Johannes Berg <johannes.berg@intel.com> Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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