Messages in this thread Patch in this message | | | From | Yang Yingliang <> | Subject | [PATCH net-next] fjes: check return value after calling platform_get_resource() | Date | Thu, 10 Jun 2021 16:02:43 +0800 |
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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> --- drivers/net/fjes/fjes_main.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index d098b1fcf006..185c8a398681 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1254,6 +1254,10 @@ 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); -- 2.25.1
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