UPSTREAM: [media] xc2028: unlock on error in xc2028_set_config()
(cherry picked from commit 210bd104c6acd31c3c6b8b075b3f12d4a9f6b60d) We have to unlock before returning -ENOMEM. Fixes: 8dfbcc4351a0 ('[media] xc2028: avoid use after free') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Change-Id: I7b6ba9fde5c6e29467e6de23d398af2fe56e2547 Bug: 30946097
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1 changed files with 5 additions and 2 deletions
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@ -1407,8 +1407,10 @@ static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
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memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
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if (p->fname) {
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priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
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if (priv->ctrl.fname == NULL)
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return -ENOMEM;
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if (priv->ctrl.fname == NULL) {
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rc = -ENOMEM;
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goto unlock;
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}
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}
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/*
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@ -1440,6 +1442,7 @@ static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
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} else
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priv->state = XC2028_WAITING_FIRMWARE;
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}
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unlock:
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mutex_unlock(&priv->lock);
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return rc;
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