diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-02-03 13:34:00 -0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-02 21:19:47 -0700 |
| commit | bd2d6cb00d1aee5df63dc95aedaf1f2b2a7d9d4e (patch) | |
| tree | b657bbd4255c5f3d61616c6d30f423f0799016bb | |
| parent | 716bcfeb12b8d55d278af47b927839b382d2837a (diff) | |
xc2028: unlock on error in xc2028_set_config()
commit 210bd104c6acd31c3c6b8b075b3f12d4a9f6b60d upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/tuners/tuner-xc2028.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c index 082ff5608455..317ef63ee789 100644 --- a/drivers/media/tuners/tuner-xc2028.c +++ b/drivers/media/tuners/tuner-xc2028.c @@ -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; |