From f58f97fa9d258e4110ee1257a63cd1af51787f69 Mon Sep 17 00:00:00 2001
From: Colin Leroy <colin@colino.net>
Date: Sun, 1 May 2005 11:29:10 +0200
Subject: [PATCH] [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>
---
drivers/usb/net/zd1201.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c
index eb0bff535b3..3b387b00573 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)
--
2.41.3