sparc64: fix readout of cpu/fpu type

Meelis reported that on his box /proc/cpuinfo started
to reported "Unknow CPU" and the same did the boot messages.

It was a stupid bug I introduced when merging
cpu.c for 32 and 64 bit.

The code did an array reference where it had to search
for the right index.

Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 15 insertions, 3 deletions

diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index f0b825505da..32d32b4824f 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -239,14 +239,26 @@ unsigned int fsr_storage;
 
 static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
 {
+        const struct manufacturer_info *manuf;
+        int i;
+
         sparc_cpu_type = NULL;
         sparc_fpu_type = NULL;
-        if (psr_impl < ARRAY_SIZE(manufacturer_info))
+        manuf = NULL;
+
+        for (i = 0; i < ARRAY_SIZE(manufacturer_info); i++)
+        {
+                if (psr_impl == manufacturer_info[i].psr_impl) {
+                        manuf = &manufacturer_info[i];
+                        break;
+                }
+        }
+        if (manuf != NULL)
         {
                 const struct cpu_info *cpu;
                 const struct fpu_info *fpu;
 
-                cpu = &manufacturer_info[psr_impl].cpu_info[0];
+                cpu = &manuf->cpu_info[0];
                 while (cpu->psr_vers != -1)
                 {
                         if (cpu->psr_vers == psr_vers) {
@@ -256,7 +268,7 @@ static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
                         }
                         cpu++;
                 }
-                fpu =  &manufacturer_info[psr_impl].fpu_info[0];
+                fpu =  &manuf->fpu_info[0];
                 while (fpu->fp_vers != -1)
                 {
                         if (fpu->fp_vers == fpu_vers) {