[PATCH v3 08/10] usb/bus: Remove dead assignment in usb_get_fw_dev_path()

[Chen Qun]

Clang static code analyzer show warning:
qemu/hw/usb/bus.c:615:13: warning: Value stored to 'pos' is never read
            pos += snprintf(fw_path + pos, fw_len - pos, "%s@%lx",

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
---
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>

v2->v3: The format of the snprintf statement is modified(Base on Markus review).
---
 hw/usb/bus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/usb/bus.c b/hw/usb/bus.c
index b17bda3b29..2b11041451 100644
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@@ -612,8 +612,8 @@ static char *usb_get_fw_dev_path(DeviceState *qdev)
             in++;
         } else {
             /* the device itself */
-            pos += snprintf(fw_path + pos, fw_len - pos, "%s@%lx",
-                            qdev_fw_name(qdev), nr);
+            snprintf(fw_path + pos, fw_len - pos, "%s@%lx",
+                     qdev_fw_name(qdev), nr);
             break;
         }
     }
-- 
2.23.0