Commit 846de2f1 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman

xc2028: unlock on error in xc2028_set_config()

commit 210bd104 upstream.

We have to unlock before returning -ENOMEM.

Fixes: 8dfbcc43 ('[media] xc2028: avoid use after free')
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 010336c7
......@@ -1407,8 +1407,10 @@ static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
if (p->fname) {
priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
if (priv->ctrl.fname == NULL)
return -ENOMEM;
if (priv->ctrl.fname == NULL) {
rc = -ENOMEM;
goto unlock;
}
}
/*
......@@ -1440,6 +1442,7 @@ static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
} else
priv->state = XC2028_WAITING_FIRMWARE;
}
unlock:
mutex_unlock(&priv->lock);
return rc;
......
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