clk: hisilicon: hi3660：Fix potential NULL dereference in hi3660_stub_clk_probe()

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platform_get_resource() may return NULL, add proper check to
avoid potential NULL dereferencing.

This is detected by Coccinelle semantic patch.

@@
expression pdev, res, n, t, e, e1, e2;
@@

res = platform_get_resource(pdev, t, n);
+ if (!res)
+   return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);

Fixes: 4f16f7ff3b ("clk: hisilicon: Add support for Hi3660 stub clocks")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

...

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Wei Yongjun 2018-01-04 06:36:34 +00:00 • committed by Stephen Boyd

parent 56e1ee3539

commit 9903e41ae1

1 changed files with 2 additions and 0 deletions

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drivers/clk/hisilicon/clk-hi3660-stub.c

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