diff mbox series

media: ngene: Add dvb_ca_en50221_init return value check

Message ID 20240301111553.23995-1-a.burakov@rosalinux.ru
State Accepted
Commit 9bb1fd7eddcab2d28cfc11eb20f1029154dac718
Headers show
Series media: ngene: Add dvb_ca_en50221_init return value check | expand

Commit Message

Aleksandr Burakov March 1, 2024, 11:15 a.m. UTC
The return value of dvb_ca_en50221_init() is not checked here that may
cause undefined behavior in case of nonzero value return.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 25aee3debe04 ("[media] Rename media/dvb as media/pci")
Signed-off-by: Aleksandr Burakov <a.burakov@rosalinux.ru>
---
 drivers/media/pci/ngene/ngene-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 7481f553f959..24ec576dc3bf 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1488,7 +1488,9 @@  static int init_channel(struct ngene_channel *chan)
 	}
 
 	if (dev->ci.en && (io & NGENE_IO_TSOUT)) {
-		dvb_ca_en50221_init(adapter, dev->ci.en, 0, 1);
+		ret = dvb_ca_en50221_init(adapter, dev->ci.en, 0, 1);
+		if (ret != 0)
+			goto err;
 		set_transfer(chan, 1);
 		chan->dev->channel[2].DataFormatFlags = DF_SWAP32;
 		set_transfer(&chan->dev->channel[2], 1);