From: Abylay Ospan <aospan@netup.ru>
Date: Wed, 12 May 2010 07:24:09 +0000 (-0300)
Subject: V4L/DVB: cx23885: Check register errors
X-Git-Tag: v4.13~18474^2~84
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=e4425eab6b2da050bae55cffa01e573767a819a1;p=mirror_ubuntu-bionic-kernel.git

V4L/DVB: cx23885: Check register errors

Fix kernel Oops when number of NetUP Dual DVB-S2-CI cards more than
DVB_MAX_ADAPTERS limit.

[mchehab@redhat.com: move the return to the proper place]
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index 9e1460828b2f..0a199d774d9b 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -991,6 +991,8 @@ static int dvb_register(struct cx23885_tsport *port)
 	ret = videobuf_dvb_register_bus(&port->frontends, THIS_MODULE, port,
 					&dev->pci->dev, adapter_nr, 0,
 					cx23885_dvb_fe_ioctl_override);
+	if (!ret)
+		return ret;
 
 	/* init CI & MAC */
 	switch (dev->board) {