[v2] tty: xilinx_uartps: Fix missing id assignment to the console

Message ID ed3111533ef5bd342ee5ec504812240b870f0853.1588602446.git.michal.simek@xilinx.com
State New
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Series
  • [v2] tty: xilinx_uartps: Fix missing id assignment to the console
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Commit Message

Michal Simek May 4, 2020, 2:27 p.m.
From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>

When serial console has been assigned to ttyPS1 (which is serial1 alias)
console index is not updated property and pointing to index -1 (statically
initialized) which ends up in situation where nothing has been printed on
the port.

The commit 18cc7ac8a28e ("Revert "serial: uartps: Register own uart console
and driver structures"") didn't contain this line which was removed by
accident.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

Changes in v2:
- Do better commit description
- Origin subject was "tty: xilinx_uartps: Add the id to the console"

Greg: Would be good if you can take this patch to 5.7 and also to stable
trees.

---
 drivers/tty/serial/xilinx_uartps.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 672cfa075e28..b9d672af8b65 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1465,6 +1465,7 @@  static int cdns_uart_probe(struct platform_device *pdev)
 		cdns_uart_uart_driver.nr = CDNS_UART_NR_PORTS;
 #ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
 		cdns_uart_uart_driver.cons = &cdns_uart_console;
+		cdns_uart_console.index = id;
 #endif
 
 		rc = uart_register_driver(&cdns_uart_uart_driver);