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-rw-r--r--drivers/acpi/acpica/tbprint.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 254823d494a2..4dac16bd63d3 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -101,7 +101,8 @@ acpi_tb_print_table_header(acpi_physical_address address,
ACPI_INFO(("%-4.4s 0x%8.8X%8.8X %06X",
header->signature, ACPI_FORMAT_UINT64(address),
header->length));
- } else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) {
+ } else if (ACPI_VALIDATE_RSDP_SIG(ACPI_CAST_PTR(struct acpi_table_rsdp,
+ header)->signature)) {
/* RSDP has no common fields */