diff mbox series

media: dvb-frontends: rtl2832_sdr: set error code in probe

Message ID 20200921123006.8016-1-novikov@ispras.ru
State Accepted
Commit ce5d72b6f5a0b694b19cd812788d8e1ea49aea21
Headers show
Series media: dvb-frontends: rtl2832_sdr: set error code in probe | expand

Commit Message

Evgeny Novikov Sept. 21, 2020, 12:30 p.m. UTC
If rtl2832_sdr_probe() encounters an unsupported tuner it cleans up
everything and returns 0. This can result in various bad things later.
The patch sets the error code on the corresponding path.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
---
 drivers/media/dvb-frontends/rtl2832_sdr.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index 720756728f2d..ef6feb299d46 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -1411,6 +1411,7 @@  static int rtl2832_sdr_probe(struct platform_device *pdev)
 	default:
 		v4l2_ctrl_handler_init(&dev->hdl, 0);
 		dev_err(&pdev->dev, "Unsupported tuner\n");
+		ret = -ENODEV;
 		goto err_v4l2_ctrl_handler_free;
 	}
 	if (dev->hdl.error) {