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| author | Wei Yongjun <weiyongjun1@huawei.com> | 2018-03-20 14:19:34 +0000 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2018-03-20 10:23:41 -0700 |
| commit | c744b63b6c422776293cc526ef7887623926f33e (patch) | |
| tree | a938b855ef452ca0f3c2ce07572d4de61d158b35 /drivers/clk/clk-gemini.c | |
| parent | df934cbcbff7afbc024bf05f02615917c61f6470 (diff) | |
| download | linux-c744b63b6c422776293cc526ef7887623926f33e.tar.bz2 | |
clk: hisilicon: fix potential NULL dereference in hisi_clk_alloc()
platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.
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);
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Fixes: 322269163a36 ("clk: hisilicon: add hisi_clk_alloc function.")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-gemini.c')
0 files changed, 0 insertions, 0 deletions