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soc: qcom: socinfo: fix printing of pmic_model

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Print sensible string instead of just "(null)" for unknown PMIC models.
Also as we are at it, do not let debugfs handler access past pmic_models
array.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20200525164817.2938638-2-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Dmitry Baryshkov 2020-05-25 19:48:15 +03:00 committed by Bjorn Andersson
parent 0f12fe7f1e
commit e9247e2ce5
1 changed files with 4 additions and 1 deletions
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5
drivers/soc/qcom/socinfo.c
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@ -274,7 +274,10 @@ static int qcom_show_pmic_model(struct seq_file *seq, void *p)
if (model < 0)
return -EINVAL;
seq_printf(seq, "%s\n", pmic_models[model]);
if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
seq_printf(seq, "%s\n", pmic_models[model]);
else
seq_printf(seq, "unknown (%d)\n", model);
return 0;
}