43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
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From d03d586aabc9000cabc56de7e327c5b5640f3179 Mon Sep 17 00:00:00 2001
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From: Ulrich Hecht <uli@suse.de>
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Date: Tue, 14 Apr 2009 16:27:36 +0200
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Subject: [PATCH 08/17] qemu-cvs-ioctl_nodirection
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the direction given in the ioctl should be correct so we can assume the
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communication is uni-directional. The alsa developers did not like this
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concept though and declared ioctls IOC_R and IOC_W even though they were
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IOC_RW.
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Signed-off-by: Ulrich Hecht <uli@suse.de>
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---
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linux-user/syscall.c | 6 ++++++
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1 files changed, 6 insertions(+), 0 deletions(-)
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diff --git a/linux-user/syscall.c b/linux-user/syscall.c
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index 04f77ef..b51634b 100644
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--- a/linux-user/syscall.c
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+++ b/linux-user/syscall.c
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@@ -3134,6 +3134,11 @@ static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
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arg_type++;
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target_size = thunk_type_size(arg_type, 0);
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switch(ie->access) {
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+ /* FIXME: actually the direction given in the ioctl should be
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+ * correct so we can assume the communication is uni-directional.
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+ * The alsa developers did not like this concept though and
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+ * declared ioctls IOC_R and IOC_W even though they were IOC_RW.*/
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+/*
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case IOC_R:
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ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
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if (!is_error(ret)) {
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@@ -3152,6 +3157,7 @@ static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
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unlock_user(argptr, arg, 0);
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ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
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break;
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+*/
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default:
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case IOC_RW:
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argptr = lock_user(VERIFY_READ, arg, target_size, 1);
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--
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1.7.1
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