From: Petar Jovanovic Date: Thu, 21 Mar 2013 17:57:36 +0000 (+0100) Subject: linux-user: change do_semop to return target errno when unsuccessful X-Git-Tag: qemu-xen-4.4.0-rc1~6^2~646^2~3 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=40508bb424971d9f39f3fb3b455a1765aa7799ee;p=qemu-upstream-4.5-testing.git linux-user: change do_semop to return target errno when unsuccessful do_semop() is called from two places, and one of these fails to convert return error to target errno when semop fails. This patch changes the function to always return target errno in case of an unsuccessful call. Signed-off-by: Petar Jovanovic Reviewed-by: Peter Maydell Signed-off-by: Stefan Hajnoczi --- diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 1f07621ff..d6d20502e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2764,7 +2764,7 @@ static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) if (target_to_host_sembuf(sops, ptr, nsops)) return -TARGET_EFAULT; - return semop(semid, sops, nsops); + return get_errno(semop(semid, sops, nsops)); } struct target_msqid_ds @@ -6957,7 +6957,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_semop case TARGET_NR_semop: - ret = get_errno(do_semop(arg1, arg2, arg3)); + ret = do_semop(arg1, arg2, arg3); break; #endif #ifdef TARGET_NR_semctl