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| /linux/drivers/clk/hisilicon/ |
| H A D | clk-hi3660-stub.c | diff 9903e41ae1f5d50c93f268ca3304d4d7c64b9311 Thu Jan 04 07:36:34 CET 2018 Wei Yongjun <weiyongjun1@huawei.com> clk: hisilicon: hi3660：Fix potential NULL dereference in hi3660_stub_clk_probe()
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: 4f16f7ff3bc0 ("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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