iwlwifi: call apm stop on exit

This patch calls apm stop on exit and suspend. Without this patch
hardware consumes power even after driver is removed or suspended.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 34928c8..4e3d6c7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2187,7 +2187,10 @@
 	udelay(5);
 
 	/* FIXME: apm_ops.suspend(priv) */
-	priv->cfg->ops->lib->apm_ops.reset(priv);
+	if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status))
+		priv->cfg->ops->lib->apm_ops.stop(priv);
+	else
+		priv->cfg->ops->lib->apm_ops.reset(priv);
 	priv->cfg->ops->lib->free_shared_mem(priv);
 
  exit: