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media: dvb_usb_pctv452e: module refcount changes were unbalanced 

dvb_frontend will call dvb_detach for:
- stb0899_detach in dvb_frontend_release and
- stb0899_release in __dvb_frontend_free

But we only do dvb_attach(stb0899_attach).
Increment the module refcount instead.

Signed-off-by: Wolfgang Rohdewald <wolfgang@rohdewald.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Wolfgang Rohdewald 2017-11-28 06:33:52 -05:00 committed by Mauro Carvalho Chehab
parent b1728ff617
commit 6cdeaed3b1
1 changed files with 8 additions and 0 deletions
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8
drivers/media/usb/dvb-usb/pctv452e.c
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@ -913,6 +913,14 @@ static int pctv452e_frontend_attach(struct dvb_usb_adapter *a)
&a->dev->i2c_adap);
if (!a->fe_adap[0].fe)
return -ENODEV;
/*
* dvb_frontend will call dvb_detach for both stb0899_detach
* and stb0899_release but we only do dvb_attach(stb0899_attach).
* Increment the module refcount instead.
*/
symbol_get(stb0899_attach);
if ((dvb_attach(lnbp22_attach, a->fe_adap[0].fe,
&a->dev->i2c_adap)) == NULL)
err("Cannot attach lnbp22\n");