[Qemu-ppc] [PATCH 4/6] PPC: booke206: allow NULL raddr in ppcmas_tlb_check

[Alexander Graf]

We might want to call the tlb check function without actually caring about
the real address resolution. Check if we really should write the value
back.

Signed-off-by: Alexander Graf <address@hidden>
---
 target-ppc/helper.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 5847453..2ce2d92 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1338,7 +1338,10 @@ int ppcmas_tlb_check(CPUState *env, ppcmas_tlb_t *tlb,
     if ((address & mask) != (tlb->mas2 & MAS2_EPN_MASK)) {
         return -1;
     }
-    *raddrp = (tlb->mas7_3 & mask) | (address & ~mask);
+
+    if (raddrp) {
+        *raddrp = (tlb->mas7_3 & mask) | (address & ~mask);
+    }
 
     return 0;
 }
-- 
1.6.0.2