[IA64] Take defensive stance on ia64_pal_get_brand_info()

Stephane thought he saw a problem here (but was just confused
by the return value from ia64_pal_get_brand_info()).  But we
should be more defensive here in case an prototype PAL for
a future processor doesn't implement this PAL call.

Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index be39845..ad567b8 100644 (file)
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -674,6 +674,7 @@ get_model_name(__u8 family, __u8 model)
 {
        char brand[128];
 
+       memcpy(brand, "Unknown", 8);
        if (ia64_pal_get_brand_info(brand)) {
                if (family == 0x7)
                        memcpy(brand, "Merced", 7);
@@ -681,8 +682,7 @@ get_model_name(__u8 family, __u8 model)
                        case 0: memcpy(brand, "McKinley", 9); break;
                        case 1: memcpy(brand, "Madison", 8); break;
                        case 2: memcpy(brand, "Madison up to 9M cache", 23); break;
-               } else
-                       memcpy(brand, "Unknown", 8);
+               }
        }
        if (brandname[0] == '\0')
                return strcpy(brandname, brand);