From: John W. Linville <linville@tuxdriver.com>
Date: Wed, 2 Jul 2008 15:04:24 +0000 (-0400)
Subject: hostap_cs: correct poor NULL checks in suspend/resume routines
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fcee7a01ad7516eeb8dfdd0a17ef04cd2ee30757;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

hostap_cs: correct poor NULL checks in suspend/resume routines

This corrects this kernel.org bug:

	http://bugzilla.kernel.org/show_bug.cgi?id=9701

Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index 80039a0ae027..3b4e55cf33cd 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -777,8 +777,10 @@ static int hostap_cs_suspend(struct pcmcia_device *link)
 	int dev_open = 0;
 	struct hostap_interface *iface = NULL;
 
-	if (dev)
-		iface = netdev_priv(dev);
+	if (!dev)
+		return -ENODEV;
+
+	iface = netdev_priv(dev);
 
 	PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
 	if (iface && iface->local)
@@ -798,8 +800,10 @@ static int hostap_cs_resume(struct pcmcia_device *link)
 	int dev_open = 0;
 	struct hostap_interface *iface = NULL;
 
-	if (dev)
-		iface = netdev_priv(dev);
+	if (!dev)
+		return -ENODEV;
+
+	iface = netdev_priv(dev);
 
 	PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);