4.4-stable review patch. If anyone has any objections, please let me know.
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From: Zhouyang Jia jiazhouyang09@gmail.com
[ Upstream commit e95d7c6eb94c634852eaa5ff4caf3db05b5d2e86 ]
When dvb_register_adapter fails, the lack of error-handling code may cause unexpected results.
This patch adds error-handling code after calling dvb_register_adapter.
Signed-off-by: Zhouyang Jia jiazhouyang09@gmail.com [hans.verkuil@cisco.com: use pr_err and fix typo: adater -> adapter] Signed-off-by: Hans Verkuil hans.verkuil@cisco.com Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/usb/tm6000/tm6000-dvb.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/media/usb/tm6000/tm6000-dvb.c +++ b/drivers/media/usb/tm6000/tm6000-dvb.c @@ -275,6 +275,11 @@ static int register_dvb(struct tm6000_co
ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T", THIS_MODULE, &dev->udev->dev, adapter_nr); + if (ret < 0) { + pr_err("tm6000: couldn't register the adapter!\n"); + goto err; + } + dvb->adapter.priv = dev;
if (dvb->frontend) {