usb: usbip tool: Fix refresh_imported_device_list()

The commit 0775a9cbc694e8c7 ("usbip: vhci extension: modifications
to vhci driver") introduced multiple controllers, but the status
of the ports are only extracted from the first status file, fix it.

Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 21 insertions, 6 deletions

diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
index f6f3a19ba385..aa82c4b17797 100644
--- a/tools/usb/usbip/libsrc/vhci_driver.c
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -108,18 +108,33 @@ static int parse_status(const char *value)
         return 0;
 }
 
+#define MAX_STATUS_NAME 16
+
 static int refresh_imported_device_list(void)
 {
         const char *attr_status;
+        char status[MAX_STATUS_NAME+1] = "status";
+        int i, ret;
 
-        attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
-                                               "status");
-        if (!attr_status) {
-                err("udev_device_get_sysattr_value failed");
-                return -1;
+        for (i = 0; i < vhci_driver->ncontrollers; i++) {
+                if (i > 0)
+                        snprintf(status, sizeof(status), "status.%d", i);
+
+                attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
+                                                            status);
+                if (!attr_status) {
+                        err("udev_device_get_sysattr_value failed");
+                        return -1;
+                }
+
+                dbg("controller %d", i);
+
+                ret = parse_status(attr_status);
+                if (ret != 0)
+                        return ret;
         }
 
-        return parse_status(attr_status);
+        return 0;
 }
 
 static int get_nports(void)