usb-host: check mon before using it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -1206,6 +1206,7 @@ static int usb_host_read_file(char *line, size_t line_size, const char *device_f
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ret = 1;
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#if 0
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} else {
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if (mon)
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monitor_printf(mon, "husb: could not open %s\n", filename);
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#endif
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}
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@ -1339,6 +1340,7 @@ static int usb_host_scan(void *opaque, USBScanFunc *func)
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}
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found_devices:
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if (!usb_fs_type) {
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if (mon)
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monitor_printf(mon, "husb: unable to access USB devices\n");
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return -ENOENT;
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}
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@ -1346,6 +1348,7 @@ static int usb_host_scan(void *opaque, USBScanFunc *func)
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/* the module setting (used later for opening devices) */
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usb_host_device_path = qemu_mallocz(strlen(devpath)+1);
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strcpy(usb_host_device_path, devpath);
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if (mon)
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monitor_printf(mon, "husb: using %s file-system with %s\n",
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fs_type[usb_fs_type], usb_host_device_path);
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}
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