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-rw-r--r--include/asm-x86/mach-es7000/mach_mpparse.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-x86/mach-es7000/mach_mpparse.h b/include/asm-x86/mach-es7000/mach_mpparse.h
index 8aa10547b4b1..52ee75cd0fe1 100644
--- a/include/asm-x86/mach-es7000/mach_mpparse.h
+++ b/include/asm-x86/mach-es7000/mach_mpparse.h
@@ -29,9 +29,9 @@ extern int mps_oem_check(struct mp_config_table *mpc, char *oem,
static inline int es7000_check_dsdt(void)
{
struct acpi_table_header header;
- memcpy(&header, 0, sizeof(struct acpi_table_header));
- acpi_get_table_header(ACPI_SIG_DSDT, 0, &header);
- if (!strncmp(header.oem_id, "UNISYS", 6))
+
+ if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
+ !strncmp(header.oem_id, "UNISYS", 6))
return 1;
return 0;
}