linux-kernel - [PATCH AUTOSEL 6.4 14/17] fbdev: goldfishfb: Do not check 0 for platform_get

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Message-Id: <20230829133211.519957-14-sashal@kernel.org>
Date:   Tue, 29 Aug 2023 09:32:01 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Zhu Wang <wangzhu9@...wei.com>, Helge Deller <deller@....de>,
        Sasha Levin <sashal@...nel.org>, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.4 14/17] fbdev: goldfishfb: Do not check 0 for platform_get_irq()

From: Zhu Wang <wangzhu9@...wei.com>

[ Upstream commit 0650d5098f8b6b232cd5ea0e15437fc38f7d63ba ]

Since platform_get_irq() never returned zero, so it need not to check
whether it returned zero, and we use the return error code of
platform_get_irq() to replace the current return error code.

Please refer to the commit a85a6c86c25b ("driver core: platform: Clarify
that IRQ 0 is invalid") to get that platform_get_irq() never returned
zero.

Signed-off-by: Zhu Wang <wangzhu9@...wei.com>
Signed-off-by: Helge Deller <deller@....de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/video/fbdev/goldfishfb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c
index 6fa2108fd912d..e41c9fef4a3b6 100644
--- a/drivers/video/fbdev/goldfishfb.c
+++ b/drivers/video/fbdev/goldfishfb.c
@@ -203,8 +203,8 @@ static int goldfish_fb_probe(struct platform_device *pdev)
 	}
 
 	fb->irq = platform_get_irq(pdev, 0);
-	if (fb->irq <= 0) {
-		ret = -ENODEV;
+	if (fb->irq < 0) {
+		ret = fb->irq;
 		goto err_no_irq;
 	}
 
-- 
2.40.1