[PATCH] cpufreq: kryo: Fix possible error code dereference
From: <hidden>
Date: 2018-06-14 20:31:34
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arm/qualcomm mailing list, cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
From: Ilia Lin <redacted> In event of error returned by the nvmem_cell_read() non-pointer value may be dereferenced. Fix this with error handling. Signed-off-by: Ilia Lin <redacted> --- drivers/cpufreq/qcom-cpufreq-kryo.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/qcom-cpufreq-kryo.c b/drivers/cpufreq/qcom-cpufreq-kryo.c
index d049fe4b80c4..5e9511223ce9 100644
--- a/drivers/cpufreq/qcom-cpufreq-kryo.c
+++ b/drivers/cpufreq/qcom-cpufreq-kryo.c@@ -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:
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2.11.0