From e9e5f22f78f7b7c215728947f00e8bb99683b1df Mon Sep 17 00:00:00 2001
From: Ruan Jinjie <ruanjinjie@huawei.com>
Date: Thu, 3 Aug 2023 17:17:12 +0800
Subject: [PATCH] tty: serial: xilinx_uartps: Do not check for 0 return after
calling platform_get_irq()
References: bsc#1214683 (PREEMPT_RT prerequisite backports)
Patch-mainline: v6.6-rc1
Git-commit: 2c2d01a9f724a88be2895c5011689337da103c3b
Since commit a85a6c86c25b ("driver core: platform: Clarify that
IRQ 0 is invalid"), there is no possible for
platform_get_irq() to return 0. Use the return value
from platform_get_irq().
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230803091712.596987-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
drivers/tty/serial/xilinx_uartps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 20a751663ef9..2e5e86a00a77 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1562,8 +1562,8 @@ static int cdns_uart_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- rc = -ENXIO;
+ if (irq < 0) {
+ rc = irq;
goto err_out_clk_disable;
}