From: Chuhong Yuan <hslester96@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Markus Elfring <Markus.Elfring@web.de>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Chuhong Yuan <hslester96@gmail.com>
Subject: [PATCH v2] media: budget-core: Improve exception handling in budget_register()
Date: Sat, 6 Jun 2020 00:17:28 +0800 [thread overview]
Message-ID: <20200605161728.2513316-1-hslester96@gmail.com> (raw)
budget_register() has no error handling after its failure.
Add the missed undo functions for error handling to fix it.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
- Modify the label of error handler.
drivers/media/pci/ttpci/budget-core.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/media/pci/ttpci/budget-core.c b/drivers/media/pci/ttpci/budget-core.c
index fadbdeeb4495..293867b9e796 100644
--- a/drivers/media/pci/ttpci/budget-core.c
+++ b/drivers/media/pci/ttpci/budget-core.c
@@ -369,20 +369,25 @@ static int budget_register(struct budget *budget)
ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
if (ret < 0)
- return ret;
+ goto err_release_dmx;
budget->mem_frontend.source = DMX_MEMORY_FE;
ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
if (ret < 0)
- return ret;
+ goto err_release_dmx;
ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
if (ret < 0)
- return ret;
+ goto err_release_dmx;
dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
return 0;
+
+err_release_dmx:
+ dvb_dmxdev_release(&budget->dmxdev);
+ dvb_dmx_release(&budget->demux);
+ return ret;
}
static void budget_unregister(struct budget *budget)
--
2.26.2
next reply other threads:[~2020-06-05 16:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 16:17 Chuhong Yuan [this message]
2020-06-14 20:34 ` [PATCH v2] media: budget-core: Improve exception handling in budget_register() Sean Young
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