1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 09364dd8cf3a..d1bc6b6cbc70 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1046,14 +1046,14 @@ static int msm_serial_probe(struct platform_device *pdev)
         const struct of_device_id *id;
         int irq, line;
 
-        if (pdev->id == -1)
-                pdev->id = atomic_inc_return(&msm_uart_next_id) - 1;
-
         if (pdev->dev.of_node)
                 line = of_alias_get_id(pdev->dev.of_node, "serial");
         else
                 line = pdev->id;
 
+        if (line < 0)
+                line = atomic_inc_return(&msm_uart_next_id) - 1;
+
         if (unlikely(line < 0 || line >= UART_NR))
                 return -ENXIO;