qemu/0010-qemu-cvs-ioctl_nodirection.patch.patch

41 lines
1.6 KiB
Diff

From 20b1adf1ffd1bc0eb82a01be2eea32608f4ddc39 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 14 Apr 2009 16:27:36 +0200
Subject: [PATCH] qemu-cvs-ioctl_nodirection
the direction given in the ioctl should be correct so we can assume the
communication is uni-directional. The alsa developers did not like this
concept though and declared ioctls IOC_R and IOC_W even though they were
IOC_RW.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Ulrich Hecht <uli@suse.de>
---
linux-user/syscall.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 0d295c1..ae3ebd9 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3691,6 +3691,11 @@ static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
arg_type++;
target_size = thunk_type_size(arg_type, 0);
switch(ie->access) {
+ /* FIXME: actually the direction given in the ioctl should be
+ * correct so we can assume the communication is uni-directional.
+ * The alsa developers did not like this concept though and
+ * declared ioctls IOC_R and IOC_W even though they were IOC_RW.*/
+/*
case IOC_R:
ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
@@ -3709,6 +3714,7 @@ static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
unlock_user(argptr, arg, 0);
ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
break;
+*/
default:
case IOC_RW:
argptr = lock_user(VERIFY_READ, arg, target_size, 1);