File qemu-cvs-ioctl_nodirection.patch of Package qemu

Index: qemu/linux-user/syscall.c
================================================================================
--- qemu/linux-user/syscall.c
+++ qemu/linux-user/syscall.c
@@ -2117,6 +2117,11 @@
         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)) {
@@ -2131,6 +2136,7 @@
             unlock_user(argptr, arg, 0);
             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
             break;
+*/
         default:
         case IOC_RW:
             argptr = lock_user(arg, target_size, 1);