Fix possible null dereference for Leadtek DTV 3200H XC4000 tuner when
no firmware file available.
From 173991a979f5f75dbbaf38f1b053d50043a40729 Mon Sep 17 00:00:00 2001
From: Miroslav Slugeň <[email protected]>
Date: Sun, 11 Dec 2011 22:57:58 +0100
Subject: [PATCH] Fix possible null dereference for Leadtek DTV 3200H XC4000 tuner when no firmware file available.
---
drivers/media/video/cx23885/cx23885-dvb.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index bcb45be..f0482b2 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -940,6 +940,11 @@ static int dvb_register(struct cx23885_tsport *port)
fe = dvb_attach(xc4000_attach, fe0->dvb.frontend,
&dev->i2c_bus[1].i2c_adap, &cfg);
+ if (!fe) {
+ printk(KERN_ERR "%s/2: xc4000 attach failed\n",
+ dev->name);
+ goto frontend_detach;
+ }
}
break;
case CX23885_BOARD_TBS_6920:
--
1.7.2.3
