[Qemu-devel] [PULL for-2.5] tcg: Fix highwater check

[Richard Henderson]

From: John Clarke <address@hidden>

A simple typo in the variable to use when comparing vs the highwater mark.
Reports are that qemu can in fact segfault occasionally due to this mistake.

Signed-off-by: John Clarke <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 tcg/tcg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tcg/tcg.c b/tcg/tcg.c
index 682af8a..b20ed19 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2443,7 +2443,7 @@ int tcg_gen_code(TCGContext *s, tcg_insn_unit 
*gen_code_buf)
            one operation beginning below the high water mark cannot overrun
            the buffer completely.  Thus we can test for overflow after
            generating code without having to check during generation.  */
-        if (unlikely(s->code_gen_ptr > s->code_gen_highwater)) {
+        if (unlikely((void *)s->code_ptr > s->code_gen_highwater)) {
             return -1;
         }
     }
-- 
2.4.3