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tpm_tis: check pnp_acpi_device return code
Reported-by: Peter Hüwe <peterhuewe@gmx.de> Reviewed-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
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@ -84,6 +84,9 @@ static int is_itpm(struct pnp_dev *dev)
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struct acpi_device *acpi = pnp_acpi_device(dev);
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struct acpi_hardware_id *id;
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if (!acpi)
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return 0;
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list_for_each_entry(id, &acpi->pnp.ids, list) {
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if (!strcmp("INTC0102", id->id))
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return 1;
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