1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 6a1b609a0d94..27483f91a4a3 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -659,12 +659,14 @@ exit:
 static struct usb_serial_driver *search_serial_device(
                                         struct usb_interface *iface)
 {
-        const struct usb_device_id *id;
+        const struct usb_device_id *id = NULL;
         struct usb_serial_driver *drv;
+        struct usb_driver *driver = to_usb_driver(iface->dev.driver);
 
         /* Check if the usb id matches a known device */
         list_for_each_entry(drv, &usb_serial_driver_list, driver_list) {
-                id = get_iface_id(drv, iface);
+                if (drv->usb_driver == driver)
+                        id = get_iface_id(drv, iface);
                 if (id)
                         return drv;
         }
@@ -755,7 +757,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 
                 if (retval) {
                         dbg("sub driver rejected device");
-                        kfree(serial);
+                        usb_serial_put(serial);
                         module_put(type->driver.owner);
                         return retval;
                 }
@@ -827,7 +829,7 @@ static int usb_serial_probe(struct usb_interface *interface,
                  */
                 if (num_bulk_in == 0 || num_bulk_out == 0) {
                         dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n");
-                        kfree(serial);
+                        usb_serial_put(serial);
                         module_put(type->driver.owner);
                         return -ENODEV;
                 }
@@ -841,7 +843,7 @@ static int usb_serial_probe(struct usb_interface *interface,
                 if (num_ports == 0) {
                         dev_err(&interface->dev,
                             "Generic device with no bulk out, not allowed.\n");
-                        kfree(serial);
+                        usb_serial_put(serial);
                         module_put(type->driver.owner);
                         return -EIO;
                 }