From: armadefuego@gmail.com <armadefuego@gmail.com>
Date: Tue, 22 Mar 2011 16:49:15 +0000 (-0700)
Subject: orinoco: Clear dangling pointer on hardware busy
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a3ad38e87eead6ce748c6e4eec0571ce53b5a0c2;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

orinoco: Clear dangling pointer on hardware busy

On hardware busy the scan request pointer should be cleared, as higher
levels will release. This avoids a crash when that pointer is
erroneously used later.

Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/orinoco/cfg.c b/drivers/net/wireless/orinoco/cfg.c
index 09fae2f0ea08..736bbb9bd1d0 100644
--- a/drivers/net/wireless/orinoco/cfg.c
+++ b/drivers/net/wireless/orinoco/cfg.c
@@ -153,6 +153,9 @@ static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev,
 	priv->scan_request = request;
 
 	err = orinoco_hw_trigger_scan(priv, request->ssids);
+	/* On error the we aren't processing the request */
+	if (err)
+		priv->scan_request = NULL;
 
 	return err;
 }