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https://github.com/Divested-Mobile/DivestOS-Build.git
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46 lines
1.4 KiB
Diff
46 lines
1.4 KiB
Diff
From b151b71cd689c9002b94c295bedd8c8c0b7ae98e Mon Sep 17 00:00:00 2001
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From: Dan Carpenter <dan.carpenter@oracle.com>
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Date: Wed, 3 Feb 2016 13:34:00 -0200
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Subject: [PATCH] UPSTREAM: [media] xc2028: unlock on error in
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xc2028_set_config()
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We have to unlock before returning -ENOMEM.
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Fixes: 8dfbcc4351a0 ('[media] xc2028: avoid use after free')
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Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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(cherry picked from commit 210bd104c6acd31c3c6b8b075b3f12d4a9f6b60d)
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Bug: 30946097
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Change-Id: I2d0bab35824d204a05de36e265c443938033eb81
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---
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drivers/media/tuners/tuner-xc2028.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
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index 38afc54ef3497..ab0bfc46f99f2 100644
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--- a/drivers/media/tuners/tuner-xc2028.c
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+++ b/drivers/media/tuners/tuner-xc2028.c
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@@ -1389,8 +1389,10 @@ 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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@@ -1422,6 +1424,7 @@ 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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