提交 ee3dbcf9 编写于 作者: I Ilia Lin 提交者: Rafael J. Wysocki

cpufreq: kryo: Fix possible error code dereference

In event of error returned by the nvmem_cell_read() non-pointer value
may be dereferenced. Fix this with error handling.
Additionally free the allocated speedbin buffer, as per the API.

Fixes: 9ce36edd1a52 (cpufreq: Add Kryo CPU scaling driver)
Signed-off-by: NIlia Lin <ilia.lin@gmail.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
上级 ce397d21
......@@ -115,6 +115,8 @@ static int qcom_cpufreq_kryo_probe(struct platform_device *pdev)
speedbin = nvmem_cell_read(speedbin_nvmem, &len);
nvmem_cell_put(speedbin_nvmem);
if (IS_ERR(speedbin))
return PTR_ERR(speedbin);
switch (msm8996_version) {
case MSM8996_V3:
......@@ -127,6 +129,7 @@ static int qcom_cpufreq_kryo_probe(struct platform_device *pdev)
BUG();
break;
}
kfree(speedbin);
for_each_possible_cpu(cpu) {
cpu_dev = get_cpu_device(cpu);
......
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