pch_uart: Add uart device to irq name

This will additionally show the specific UART device instead of the
general module name. This cames in handy so check for the interupts of
a specific device if there are several of them.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 0931b3fe9edf..e194bb32b27b 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -257,6 +257,8 @@ struct eg20t_port {
         dma_addr_t                      rx_buf_dma;
 
         struct dentry   *debugfs;
+#define IRQ_NAME_SIZE 17
+        char                            irq_name[IRQ_NAME_SIZE];
 
         /* protect the eg20t_port private structure and io access to membase */
         spinlock_t lock;
@@ -1343,7 +1345,7 @@ static int pch_uart_startup(struct uart_port *port)
                 return ret;
 
         ret = request_irq(priv->port.irq, pch_uart_interrupt, IRQF_SHARED,
-                        KBUILD_MODNAME, priv);
+                        priv->irq_name, priv);
         if (ret < 0)
                 return ret;
 
@@ -1818,6 +1820,10 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
         priv->port.line = board->line_no;
         priv->trigger = PCH_UART_HAL_TRIGGER_M;
 
+        snprintf(priv->irq_name, IRQ_NAME_SIZE,
+                 KBUILD_MODNAME ":" PCH_UART_DRIVER_DEVICE "%d",
+                 priv->port.line);
+
         spin_lock_init(&priv->port.lock);
 
         pci_set_drvdata(pdev, priv);