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authorPeter Maydell <peter.maydell@linaro.org>2012-11-22 16:48:45 +0000
committerAnthony Liguori <aliguori@us.ibm.com>2012-11-26 13:53:52 -0600
commitfa5358c69d090d13f762f545d39c5e03124dfdd8 (patch)
tree827a8235637617fe39bc4400ca09168fcda8c625 /vl.c
parent339c2708e7a0d91e926c473314d563354a949c7f (diff)
downloadfocaccia-qemu-fa5358c69d090d13f762f545d39c5e03124dfdd8.tar.gz
focaccia-qemu-fa5358c69d090d13f762f545d39c5e03124dfdd8.zip
vl.c: Fix broken -usb option
Commit 094b287f0b accidentally broke the "-usb" command line
option, so it would have no effect if the user had not specified
any machine options at that point. (the return value from
'qemu_opts_find(qemu_find_opts("machine"), 0);' is NULL if there
are no user specified options, so it is only to be used for
looking up an option, not when trying to set one.) Similarly,
would '-usbdevice' no longer cause USB to default to enabled.

Fix this regression by using the same style of code for forcing
the usb=on machine option that we use for other aliases such as
'-enable-kvm'.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'vl.c')
-rw-r--r--vl.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/vl.c b/vl.c
index c8e9c782d6..a3ab3841a7 100644
--- a/vl.c
+++ b/vl.c
@@ -3273,16 +3273,12 @@ int main(int argc, char **argv, char **envp)
                 break;
             }
             case QEMU_OPTION_usb:
-                machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
-                if (machine_opts) {
-                    qemu_opt_set_bool(machine_opts, "usb", true);
-                }
+                olist = qemu_find_opts("machine");
+                qemu_opts_parse(olist, "usb=on", 0);
                 break;
             case QEMU_OPTION_usbdevice:
-                machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
-                if (machine_opts) {
-                    qemu_opt_set_bool(machine_opts, "usb", true);
-                }
+                olist = qemu_find_opts("machine");
+                qemu_opts_parse(olist, "usb=on", 0);
                 add_device_config(DEV_USB, optarg);
                 break;
             case QEMU_OPTION_device: