From: Colin Leroy <colin@colino.net>
Date: Sun, 1 May 2005 09:29:10 +0000 (+0200)
Subject: [PATCH] USB: check for device in zd1201_resume
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=f58f97fa9d258e4110ee1257a63cd1af51787f69;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

[PATCH] USB: check for device in zd1201_resume

My patch adding PM support for zd1201 didn't check for the device on
resume, which can oops if the device has been removed.

This patch fixes it.

Signed-off-by: Colin Leroy <colin@colino.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c
index eb0bff535b3c..3b387b005739 100644
--- a/drivers/usb/net/zd1201.c
+++ b/drivers/usb/net/zd1201.c
@@ -1905,6 +1905,9 @@ static int zd1201_resume(struct usb_interface *interface)
 {
 	struct zd1201 *zd = usb_get_intfdata(interface);
 
+	if (!zd || !zd->dev)
+		return -ENODEV;
+
 	netif_device_attach(zd->dev);
 
 	if (zd->was_enabled)