From: Ruan Jinjie <ruanjinjie@huawei.com>
Date: Thu, 3 Aug 2023 09:17:12 +0000 (+0800)
Subject: tty: serial: xilinx_uartps: Do not check for 0 return after calling platform_get_irq()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2c2d01a9f724a88be2895c5011689337da103c3b;p=linux.git

tty: serial: xilinx_uartps: Do not check for 0 return after calling platform_get_irq()

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>
---

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 20a751663ef9f..2e5e86a00a77d 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;
 	}