Commit 16bbc3eb authored by Martin Kepplinger's avatar Martin Kepplinger Committed by Kalle Valo
Browse files

rsi: fix null pointer dereference during rsi_shutdown() 



Appearently the hw pointer can be NULL while the module is loaded and
in that case rsi_shutdown() crashes due to the unconditional dereference.

Signed-off-by: default avatarMartin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 8299adec

drivers/net/wireless/rsi/rsi_91x_sdio.c

+6 −3
Original line number Diff line number Diff line
@@ -1468,12 +1468,15 @@ static void rsi_shutdown(struct device *dev) 
	struct rsi_91x_sdiodev *sdev =

		(struct rsi_91x_sdiodev *)adapter->rsi_dev;

	struct ieee80211_hw *hw = adapter->hw;

	struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;



	rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n");



	if (hw) {

		struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;



		if (rsi_config_wowlan(adapter, wowlan))

			rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");

	}



	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&

	    adapter->priv->bt_adapter) {

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