thinkpad_acpi: fix possible NULL pointer dereference if kstrdup failed
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -5826,7 +5826,7 @@ static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp)
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tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION),
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tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION),
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GFP_KERNEL);
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GFP_KERNEL);
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if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) {
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if (tp->model_str && strnicmp(tp->model_str, "ThinkPad", 8) != 0) {
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kfree(tp->model_str);
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kfree(tp->model_str);
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tp->model_str = NULL;
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tp->model_str = NULL;
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}
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}
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