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* [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init()
@ 2017-01-27  8:06 Dan Carpenter
  2017-01-27  8:15 ` [patch] [media] add device IDs to ngene vdr
  2017-01-27  8:29 ` [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init() walter harms
  0 siblings, 2 replies; 10+ messages in thread
From: Dan Carpenter @ 2017-01-27  8:06 UTC (permalink / raw)
  To: Mauro Carvalho Chehab; +Cc: linux-media, kernel-janitors

We should be returning negative error codes here or it leads to a crash.
This also silences a static checker warning.

	drivers/media/pci/mantis/mantis_cards.c:250 mantis_pci_probe()
	warn: 'mantis->dmxdev.dvbdev->fops' double freed

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/media/pci/mantis/mantis_dvb.c b/drivers/media/pci/mantis/mantis_dvb.c
index 5a71e1791cf5..0db4de3a2285 100644
--- a/drivers/media/pci/mantis/mantis_dvb.c
+++ b/drivers/media/pci/mantis/mantis_dvb.c
@@ -226,11 +226,12 @@ int mantis_dvb_init(struct mantis_pci *mantis)
 			goto err5;
 		} else {
 			if (mantis->fe == NULL) {
+				result = -ENOMEM;
 				dprintk(MANTIS_ERROR, 1, "FE <NULL>");
 				goto err5;
 			}
-
-			if (dvb_register_frontend(&mantis->dvb_adapter, mantis->fe)) {
+			result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
+			if (result) {
 				dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
 
 				if (mantis->fe->ops.release)

^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2017-02-14  7:20 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-01-27  8:06 [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init() Dan Carpenter
2017-01-27  8:15 ` [patch] [media] add device IDs to ngene vdr
2017-01-27 13:20   ` [PATCH] [MEDIA] " vdr
2017-02-07  8:42     ` [PATCH] [MEDIA] add device ID to ati remote vdr
2017-02-13 13:42       ` Sean Young
2017-02-13 22:57         ` Helmut Auer
2017-02-14  7:11         ` Helmut Auer
2017-02-14  7:20     ` [PATCH] [MEDIA] add device IDs to ngene driver Helmut Auer
2017-01-27  8:29 ` [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init() walter harms
2017-01-27  9:46   ` Dan Carpenter

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