[PATCH AUTOSEL 4.19 31/87] media: dvbdev: Fix memleak in dvb_register_device

From: Sasha Levin
Date: Tue Dec 22 2020 - 21:51:22 EST


From: Dinghao Liu <dinghao.liu@xxxxxxxxxx>

[ Upstream commit 167faadfcf9339088910e9e85a1b711fcbbef8e9 ]

When device_create() fails, dvbdev and dvbdevfops should
be freed just like when dvb_register_media_device() fails.

Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/dvb-core/dvbdev.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 04dc2f4bc7aaf..a652b6b1eb1fd 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -541,6 +541,9 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
if (IS_ERR(clsdev)) {
pr_err("%s: failed to create device dvb%d.%s%d (%ld)\n",
__func__, adap->num, dnames[type], id, PTR_ERR(clsdev));
+ dvb_media_device_free(dvbdev);
+ kfree(dvbdevfops);
+ kfree(dvbdev);
return PTR_ERR(clsdev);
}
dprintk("DVB: register adapter%d/%s%d @ minor: %i (0x%02x)\n",
--
2.27.0