[PATCH 5.8 047/148] media: budget-core: Improve exception handling in budget_register()

[Greg Kroah-Hartman]

From: Chuhong Yuan <hsleste...@gmail.com>

[ Upstream commit fc0456458df8b3421dba2a5508cd817fbc20ea71 ]

budget_register() has no error handling after its failure.
Add the missed undo functions for error handling to fix it.

Signed-off-by: Chuhong Yuan <hsleste...@gmail.com>
Signed-off-by: Sean Young <s...@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 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 fadbdeeb44955..293867b9e7961 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)
-- 
2.25.1