From: Peter Maydell <peter.maydell@linaro.org>
Date: Wed, 12 Mar 2014 13:06:01 +0000 (+0000)
Subject: linux-user: Don't return uninitialized value for atomic_barrier syscall
X-Git-Tag: v2.0.0-rc1~39^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3b899ea7d405dc7634ac629aa7b0e7639d506d9f;p=thirdparty%2Fqemu.git

linux-user: Don't return uninitialized value for atomic_barrier syscall

QEMU's implementation of the m68k atomic_barrier syscall, like the kernel's,
is just a no-op. However we still need to return a result code from it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ffc11de4b74..b5eadb14b09 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9148,6 +9148,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
     case TARGET_NR_atomic_barrier:
     {
         /* Like the kernel implementation and the qemu arm barrier, no-op this? */
+        ret = 0;
         break;
     }
 #endif