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fjes: check return value after calling platform_get_resource() 

[ Upstream commit f18c11812c949553d2b2481ecaa274dd51bed1e7 ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2021-06-10 16:02:43 +08:00 committed by Greg Kroah-Hartman
parent 2c028cee95
commit 91f6b357e9
1 changed files with 4 additions and 0 deletions
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4
drivers/net/fjes/fjes_main.c
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@ -1262,6 +1262,10 @@ static int fjes_probe(struct platform_device *plat_dev)
adapter->interrupt_watch_enable = false;
res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
if (!res) {
err = -EINVAL;
goto err_free_control_wq;
}
hw->hw_res.start = res->start;
hw->hw_res.size = resource_size(res);
hw->hw_res.irq = platform_get_irq(plat_dev, 0);