lkml.org 
[lkml]   [2019]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 4.19 03/68] net: ieee802154: fix a potential NULL pointer dereference
Date
From: Kangjie Lu <kjlu@umn.edu>

[ Upstream commit 2795e8c251614ac0784c9d41008551109f665716 ]

In case alloc_ordered_workqueue fails, the fix releases
sources and returns -ENOMEM to avoid NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
---
drivers/net/ieee802154/adf7242.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index cd1d8faccca5..cd6b95e673a5 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1268,6 +1268,10 @@ static int adf7242_probe(struct spi_device *spi)
INIT_DELAYED_WORK(&lp->work, adf7242_rx_cal_work);
lp->wqueue = alloc_ordered_workqueue(dev_name(&spi->dev),
WQ_MEM_RECLAIM);
+ if (unlikely(!lp->wqueue)) {
+ ret = -ENOMEM;
+ goto err_hw_init;
+ }

ret = adf7242_hw_init(lp);
if (ret)
--
2.19.1
\
 
 \ /
  Last update: 2019-04-22 22:05    [W:0.231 / U:1.240 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site