x86: fix bogus memcpy in es7000_check_dsdt()
es7000_check_dst() contains a memcpy from 0, which probably should have been
a memset. Remove it and check the retunr value from acpi_get_table_header.
Noticed by: Joe Perches <joe@perches.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/mach-es7000/mach_mpparse.h b/include/asm-x86/mach-es7000/mach_mpparse.h
index 8aa1054..52ee75c 100644
--- a/include/asm-x86/mach-es7000/mach_mpparse.h
+++ b/include/asm-x86/mach-es7000/mach_mpparse.h
@@ -29,9 +29,9 @@
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;
}