From e03790d73338bf867f97cf79e38ba342aefcc839 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 15 Dec 2009 11:43:02 +0100 Subject: [PATCH] usb-host: check mon before using it. Signed-off-by: Gerd Hoffmann Signed-off-by: Anthony Liguori --- usb-linux.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/usb-linux.c b/usb-linux.c index 105ce88..88728e9 100644 --- a/usb-linux.c +++ b/usb-linux.c @@ -1206,7 +1206,8 @@ static int usb_host_read_file(char *line, size_t line_size, const char *device_f ret = 1; #if 0 } else { - monitor_printf(mon, "husb: could not open %s\n", filename); + if (mon) + monitor_printf(mon, "husb: could not open %s\n", filename); #endif } @@ -1339,15 +1340,17 @@ static int usb_host_scan(void *opaque, USBScanFunc *func) } found_devices: if (!usb_fs_type) { - monitor_printf(mon, "husb: unable to access USB devices\n"); + if (mon) + monitor_printf(mon, "husb: unable to access USB devices\n"); return -ENOENT; } /* the module setting (used later for opening devices) */ usb_host_device_path = qemu_mallocz(strlen(devpath)+1); strcpy(usb_host_device_path, devpath); - monitor_printf(mon, "husb: using %s file-system with %s\n", - fs_type[usb_fs_type], usb_host_device_path); + if (mon) + monitor_printf(mon, "husb: using %s file-system with %s\n", + fs_type[usb_fs_type], usb_host_device_path); } switch (usb_fs_type) { -- 2.7.4