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[media] e4000: fix crash when attach fails
Callbacks were set even attach failed. This leads calling .release() in error case and resulted crash. Reported-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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parent
ef40c0088e
commit
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1 changed files with 4 additions and 3 deletions
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@ -366,9 +366,6 @@ struct dvb_frontend *e4000_attach(struct dvb_frontend *fe,
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priv->cfg = cfg;
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priv->i2c = i2c;
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fe->tuner_priv = priv;
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memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,
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sizeof(struct dvb_tuner_ops));
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/* check if the tuner is there */
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ret = e4000_rd_reg(priv, 0x02, &chip_id);
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@ -389,6 +386,10 @@ struct dvb_frontend *e4000_attach(struct dvb_frontend *fe,
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"%s: Elonics E4000 successfully identified\n",
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KBUILD_MODNAME);
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fe->tuner_priv = priv;
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memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,
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sizeof(struct dvb_tuner_ops));
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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