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authorYang Yingliang <yangyingliang@huawei.com>2021-06-10 11:02:43 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-10 23:53:13 +0300
commitf18c11812c949553d2b2481ecaa274dd51bed1e7 (patch)
tree23628b91b863baee239558b13c670c456308bf71 /drivers/net/fjes
parent47651c51c02fc4937b39b2d2207aa0d9d26a4b58 (diff)
downloadlinux-f18c11812c949553d2b2481ecaa274dd51bed1e7.tar.xz
fjes: check return value after calling platform_get_resource()
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>
Diffstat (limited to 'drivers/net/fjes')
-rw-r--r--drivers/net/fjes/fjes_main.c4
1 files changed, 4 insertions, 0 deletions
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);