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net: ieee802154: fix a potential NULL pointer dereference

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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>
This commit is contained in:
Kangjie Lu 2019-03-11 02:25:17 -05:00 committed by Stefan Schmidt
parent 4ec850e5df
commit 2795e8c251
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ieee802154/adf7242.c
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@ -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)